1 Guide to energy efficiency products and services in the South West of England 2nd Edition 1
2 3 Contents Introduction Metering, monitoring and targeting 4 Lighting technologies 8 Heating and cooling 14 Building fabric 20 Motors, pumps and drives 24 Power production and control 28 Consultancy services 30 Advice and support 36 2nd Edition, May 2010 Disclaimer While reasonable steps have been made to ensure that the information in this guide is accurate, it may not cover all relevant companies and retailers in the south west. Regen SW cannot be held liable for any direct, indirect or consequential loss or damage that results from work undertaken on the basis of its recommendations. Nothing in this report is intended to be or should be interpreted as an endorsement of, or recommendation for, any supplier, service or product. Any person making use of this report does so at their own risk. CORNWALL DEVON SOMERSET GLOUCESTERshire FORMER AVON DORSET WILTSHIRE Transition to a Low Carbon Economy The government s plan to transition the UK to a low carbon economy presents both a challenge and an opportunity for south west businesses and public sector organisations. In response to rising energy prices, the introduction of new government legislation such as the CRC Energy Efficiency Scheme, and the recognition that management of carbon emissions is now central to corporate reputation, it is becoming ever more important for organisations to monitor their energy consumption and to implement energy efficiency measures. Many businesses tackling these challenges are also discovering that by being more energy efficient they can cut costs. Moreover, there are clear market opportunities for those businesses providing their customers with energy efficient products and services. Analysis done by Regen SW shows that the market for energy efficiency products and services continues to grow rapidly despite the recession, and many south west based businesses are at the forefront of this new and exciting economic sector. 1 The guide to energy efficiency products & services in the south west This guide highlights and showcases some of the innovative businesses in the south west that are providing energy efficiency products and services. It is intended to be of use to any organisation that is considering implementing energy efficiency measures, and to provide a reference source for those providing energy efficiency support and advice. It is not an exhaustive list of businesses and support organisations in the region. Regen SW would welcome enquires from businesses that would like to be included in future editions of the guide and from new businesses in the energy efficiency sector. This guide forms part of the work that Regen SW is doing to promote the growth of sustainable energy businesses in the south west and to champion energydemand-reduction initiatives in the region. Getting further advice A number of sources of further information and advice are referenced within the guide. For further technical information we would strongly recommend the excellent series of technical guides produced by the Carbon Trust, which also provides a range of advice services, particularly for larger energy users. For SMEs in the south west, further support can be accessed through Business Link, and through organisations such as the South West Manufacturing Advisory Service. There are also a wide range of consultancy, advisory and energy management companies listed within the guide. 1. Business Opportunities for the Energy Efficiency Sector in the South West of England (2009)
3 5 Metering, monitoring and targeting In order to make an informed decision about how to reduce energy consumption within an organisation it is important to collect accurate and appropriate data. By implementing a well thought out metering and monitoring strategy it is possible to identify the most effective way to reduce energy consumption and to set targets for the future. A number of metering and monitoring technologies are available. Where half hourly meter data is not provided, smart meters can be used to identify energy consumption in more detail than a conventional energy meter. Also, sub metering of substantial energy use allows a more detailed breakdown of energy use. Automatic Monitoring and Targeting (AMT) equipment can be used to identify energy wastage and can be fixed or portable. In the south west of England there are a number of manufacturers and suppliers of energy monitoring equipment, mainly focused around Bristol, Gloucestershire and Devon. Also, some energy suppliers provide energy efficiency advice and related energy services for their customers (e.g. EDF Energy and British Gas Business). Therefore it is worth finding out more about the business services your energy supplier can offer. C3 Resources has partnered the Brend Hotel Group in their drive to increase energy and water efficiencies across the estate of 11 hotels throughout Devon and Cornwall The starting point was for C3 Resources to install Automatic Meter Reading (AMR) equipment to the main incoming water, gas, electricity and oil meters of the hotels, allowing half-hourly energy consumption to be viewed using web-based Monitoring and Targeting (M&T) software. Sub-metering was also installed to monitor specific areas such as swimming pool complexes and individual boiler plant for more in-depth analysis of energy consumption. The C3 web portal allows individual hotel managers to monitor all their energy and water consumption on one software platform, providing ease of access to data and timely responses to occurrences of inefficient energy usage. The monitoring system provided by C3 Resources has been invaluable in supporting our drive for energy efficiency across our hotel group. Hotel managers are able to see actual results of energy initiatives immediately, with energy awareness being integral to day-to-day working practices. Amanda Brend, Environmental Resource Manager, Brend Hotel Group Source: C3 Resources Image courtesy of Brend Hotel Group
4 7 Metering, monitoring and targeting Metering, monitoring and targeting Advanced Energy Monitoring Systems Ltd Ottery St Mary DEVON Ark Energy Efficiency Wimborne DORSET C3 Resources Plymouth DEVON Parasense Ltd Gloucester GLOUCESTERSHIRE Plexus Technology Ltd Cheltenham GLOUCESTERSHIRE Siemens Flow Instruments Ltd Stonehouse GLOUCESTERSHIRE Sinergy Ltd Slimbridge GLOUCESTERSHIRE Spirax-Sarco Ltd Cheltenham GLOUCESTERSHIRE Socomec UPS Cirencester GLOUCESTERSHIRE Western Power Distribution BRISTOL BS EN Energy Management Systems represents the latest best practice in energy management building upon existing national standards and initiatives. For more information go to Carbon Trust Standard is awarded to organisations that measure, manage and reduce their carbon footprint. It can be used as an Early Action metric for the CRC Energy Efficiency Scheme. For more information go to Need more advice? The Carbon Trust provides an excellent series of guides covering this topic that can be downloaded for free from their website. These include: CTL001 Understanding your energy consumption CTG004 Degree days for energy management CTV027 Metering technology overview GIL136 Energy management fact sheet GIL157 How to monitor your energy use They also provide grants and funding opportunities. For more information go to
5 Most businesses can profit from reviewing their current lighting: Lighting can account for up to 40 per cent of a business s electricity bill, and advances in lighting technology make cutting this use by up to 30 per cent a simple and cost effective step to take, even for those in rented buildings. 2 Lighting technologies Lighting technology is constantly changing, and many lighting upgrades pay for themselves very rapidly. Choosing the ideal lighting involves considering energy efficiency, light quality, controllability, and purchase, installation and maintenance costs. Incandescents Traditional tungsten incandescent lamps are very inefficient, converting most of the energy used into heat, not light. Halogen incandescent lamps are slightly more efficient, but are still relatively inefficient. Both types also have short service lives, typically 1,000-3,000 hours (6-18 months if used 40 hours per week). In most cases, energy use can be cut by 70 to 90 per cent by replacing these lamps with more efficient compact fluorescent lamps or Light Emitting Diodes (LEDs). Light Emitting Diodes (LEDs) LED lighting has developed rapidly, and both standard and dimmable high performance LEDs are now available that can directly replace halogen spotlights and down lighters. A 5 W high performance LED has the same light output as a 50 W halogen lamp. Additional benefits are much reduced heat output, improving comfort and reducing cooling loads in warm weather, and much longer lamp life (30,000 hours is a common rating). Powerful LEDs also create similar sparkle to halogen lamps, which can be important in the retail and hospitality industries. Somar International installs lighting system at British Ceramic Tile British Ceramic Tile (BCT) is a major manufacturer of wall tiles based in Devon. In 2006 the company carried out a comprehensive review of the existing lighting provision in its manufacturing facility. It found that existing light levels were poor, particularly in quality control inspection areas; that ceramic dust had caused corrosion damage to existing fittings; and that light fittings were left on when not needed and could not be dimmed when ambient light levels were high during the day time. Somar International Ltd, a manufacturer of energy-saving technologies based in Cornwall, proposed that the existing fittings be replaced with Somar Eluma intelligent luminaries. They advised that T5 fluorescent tubes be used to improve light quality in working areas, that ingress protected fittings be used to prevent corrosion damage, and that the integral sensor in each fitting be used to react to occupancy and ambient light levels so that the lights would not be left on unnecessarily. Source: Somar International Ltd 9 Compact Fluorescent Lamps (CFL) Compact fluorescent lamps became familiar to many people as cold white sticks of light, and early versions were criticized for a number of reasons, including the time to light up, light colour, the size of the lamp, and the cost. Good quality modern versions strike very quickly, are available in a range of hues including warm whites, come in a wide variety of styles and shapes, including golf balls and candle shaped bulbs, and are much more economical. Lifetimes of 10,000-15,000 hours are common (5-7 years if used 40 hours a week), reducing maintenance costs and disruption. 2. Carbon Trust CTV021 Lighting technology overview Image courtesy of Somar International Ltd.
6 11 Lighting technologies Fluorescent tubes The great majority of offices and many other business spaces are lit by fluorescent tubes. There are however, significant differences in light quality, lamp life, and energy efficiency between different types of fluorescent tube. There are three characteristics of fluorescent tube lighting that influence energy efficiency: Tube width: fluorescent tubes come three widths: 1.5 thick T12 tubes, 1 thick T8 tubes and 5 /8 thick T5 tubes. Slimmer tubes are generally more efficient than wider tubes. They are also cheaper to dispose of. Starters: a significant portion of energy is used in running the control gear for fluorescent tubes: Electromagnetic mains voltage ballasts typically use 25 per cent of the power of the tube they supply. Electronic high frequency ballasts use only 10 per cent of the power of the tube supplied. High frequency ballasts also eliminate the flicker sometimes noted with fluorescent lamps. Fluorescent lamps operating on high frequency control gear can also be used with dimmers, further reducing energy costs. Tube coating: the light output of typical halophosphate fluorescent tubes deteriorates over time; however tubes with triphosphor coatings maintain light output levels over much longer periods, provide better light quality, and tend to have longer service lives. The most efficient form of fluorescent lighting, triphosphor T5 tubes operating on electronic ballasts, uses approximately 25 per cent to 40 per cent less energy for the same initial output. The light will be of better quality, will deteriorate much less, and the tubes will generally last much longer. Adapters are available that allow T5 tubes to be fitted in existing fittings, which can be very useful for businesses not planning to stay in the same location for more than a couple of years. Industrial lighting Fluorescent tubes are found in many industrial situations, however there are many situations in which other types of lighting should be considered, particularly those with very high ceilings, where lights need to be left on continuously, and where good quality light is not needed. Industrial lighting is characterised by high output, high efficiency discharge lamps that take a long time to turn on (strike), making them unsuitable for places where light is needed immediately for short periods. Low pressure sodium lamps, like those used for street lighting, are very efficient, but produce very poor quality light that does not enable colours to be recognised. They are ideal for car park and exterior lighting. High pressure sodium lamps are not quite as efficient, but have longer lamp life and provide a better quality of light, although still relatively poor. Deluxe, white high pressure sodium lamps do provide better light quality, but are less efficient. Metal Halide lamps provide a good quality bright white light at slightly lower efficiencies than high pressure sodium lamps, but at much higher efficiencies than tungsten halogen lamps. Lighting controls dimmers, occupancy, light sensors Lighting energy use can be further reduced by ensuring it is not used when it is not needed. Occupancy sensors turn lights on when they sense movement, and turn off automatically after a set period during which no movement is sensed, and can help to drastically cut energy use in spaces that are used intermittently such as toilets and storerooms. Light sensors constantly monitor light levels, and can turn lights on and off or dim them to make maximum use of available natural light. Other types of light sensor can turn exterior lights and illuminated signs on at dusk and off at dawn. Timers on lighting circuits also ensure lights are not left on accidentally after hours. Need more advice? The Carbon Trust provides an excellent series of guides covering this topic that can be downloaded for free from their website. These include: CTV021 Lighting technology overview CTG010 Display lighting - In-depth technology guide CTL026 How to implement external lighting CTL027 How to implement office lighting refurbishment CTL033 How to implement automatic lighting controls CTL041 How to implement compact fluorescent or LED spot lighting They also provide grants and funding opportunities. For more information go to The Lighting Industry Federation provides a useful online lamp guide on their website lamp-guide Information about emerging technologies in the commercial lighting industry can be found on the Market Transformation Programme (MTP) website Image courtesy of Micatron U.K. Ltd.
7 Lighting technologies Low energy lighting and control DANLERS Limited Chippenham WILTSHIRE Fairford Energy (Fairford Electronics Ltd) Kingsbridge DEVON Hamilton Lightstat Mere WILTSHIRE Intelligent Sines Ltd Dorchester DORSET Micatron U.K. Ltd Nr. Cheltenham GLOUCESTERSHIRE NuVision Energy Exeter DEVON PhotonStar LED Ltd Southampton / Truro Hampshire / Cornwall Somar International Ltd Truro CORNWALL Total Lighting & Controls Gloucester GLOUCESTERSHIRE Lighting retailers and suppliers Ark Energy Efficiency Wimborne DORSET Coemi UK Ltd Burnham-on-Sea SOMERSET Efficient Light Plymouth DEVON Excled Ltd (led-lightbulbs.co.uk) Stroud GLOUCESTER John Wilkinson Ltd Salisbury WILTSHIRE Kaieteur Sidmouth DEVON Microlights Ltd Marlborough WILTSHIRE Save Energy UK Ltd Poole DORSET Wilts Electrical Wholesale Trowbridge WILTSHIRE For consultants, see organisations listed on pages 31 to 34 DANLERS Case Study: Sharp s Brewery Sharp s Brewery is a leading brewer of cask beer based in Cornwall. They found that the lights in their chiller warehouse units were left on constantly, even when the space was unoccupied. This was wasting a great deal of energy. Wilts Electrical Wholesale were asked to specify an energy efficient lighting installation to fulfill Part L2 of the Building Regulations and the requirements of the BREEAM report, an environmental assessment method for new buildings and major refurbishment projects. DANLERS Limited, a designer and manufacturer of energy saving controls based in Wiltshire, were asked to supply passive infrared (PIR) occupancy switches for the installation which were used to detect the movement of people in the space and to turn the lights on and off accordingly. Each switch included a quad person detector, an adjustable time lag switch, an adjustable photocell override and a relay for switching up to 6 A (1500 W). Since installing the PIR switches, the lights in the warehouse space are no longer left on unnecessarily, resulting in energy savings for the brewery. Source: DANLERS Limited 13 Stock image used
8 Heating and cooling Heating and cooling account for a significant share of the energy bills in most businesses. Typically half the energy bill in an office is for heating. Energy use can be reduced by generating and distributing the heat as efficiently as possible, and by making sure heat is only supplied at the correct time, to the right place, to a suitable temperature. Heating plant available today can be more efficient than that of only a few years ago, and much more efficient than older plant, especially if it has not been kept in good condition. Condensing versions of boilers, warm air heaters, and hot water heaters are available in both gas and oil fired models, with seasonal efficiencies of over 90 per cent. For spaces where ventilation rates are high, especially those where only a part of a space is occupied, radiant heaters can prove much more economical, since they provide heat directly to the people and room surfaces without the need to heat all the air. There are many situations where unwanted heat is generated, such as from air compressors and refrigeration plant. Heat recovery can be installed to transfer this unwanted heat to provide hot water or warm air where it is needed. Efficient heat plant alone does not guarantee low bills and correct temperatures. Insulating all hot surfaces increases the amount of heat reaching the places it is needed: Not only pipes and tanks but also valves and flanges can be effectively and economically insulated. Zenex Case Study: Plymouth Hospitals NHS Trust Plymouth Hospitals NHS Trust is the largest hospital trust in the south west peninsula. As part of its preparation for the CRC Energy Efficiency Scheme it identified a number of key hospital buildings that required more energy efficient heating and hot water systems. Zenex Technologies Ltd, a heating and hot water systems manufacturer based in Plymouth, were asked to review the heating and hot water facilities provided in these buildings and to provide a new system that would reduce operating costs and reduce each building s carbon footprint. At one of the sites, a post graduate training facility at Derriford Hospital, two new Zenex Blade heat servers were installed. These servers are equipped with energy recovery technology that recovers waste heat from flue exhaust gases to achieve high levels of operational efficiency. The manufacturer anticipates that the new system has the potential to deliver carbon savings in excess of 160,000 kg over an 11 year period. Energy cost savings are estimated to be in the region of 64,000 over the same period. Source: Zenex Technologies Ltd 15 Image courtesy of Zenex Technologies Ltd. Stock image used
9 17 Heating and cooling Control A wide range of controls is available to ensure heat is only delivered where and when it is needed, from simple timers and programmers to fully computerised building management systems that integrate heating and cooling control with fire and other alarm circuits. Temperature controls range from simple wheels to select a desired temperature to programmable thermostats that can provide several different temperatures on different days and times. Use of zoning and multiple controls ensures that not all of a building needs to be heated when only parts are occupied. Other controls used to ensure that heating plant is operated as efficiently as possible include optimum start and stop controls to ensure the heating turns on and off to give the correct temperature when the space is occupied, weather compensation to allow boilers to run at the most suitable temperature for exterior conditions, and sequencers to ensure the most efficient combination of boilers is in use and to harmonise maintenance schedules. Some examples of heating and cooling control solutions available in the south west Severn Controls Ltd design and manufacture industrial control panels and systems from their head offices in Gloucestershire. They have installed Building Energy Management Systems for a number of national retail chains which can be monitored and controlled remotely. Genesis Controls Ltd manufacture energy saving solutions for commercial kitchens. Their interlocking fresh air management system monitors gas consumption and air movement, automatically tuning fan speeds according to demand. This system has been installed in a number of schools and commercial properties across the region. There are a number of organisations offering intelligent control systems designed to optimise the energy consumption of air conditioning systems or boilers, including NuVision Energy and Fuelstretcher Ltd. Image courtesy of Genesis Controls Ltd.
10 19 Heating and cooling Monitoring and control (see also metering, monitoring and targeting on page 6) Automated Building Controls Tewkesbury GLOUCESTERSHIRE C3 Resources Ltd Plymouth DEVON DANLERS Limited Chippenham WILTSHIRE Design Installation Service Ltd Cheltenham GLOUCESTERSHIRE Eco First Ltd Yeovil SOMERSET Fuel Economy Ltd Wimborne DORSET Fuelstretcher Ltd Plymouth DEVON Genesis Controls Ltd Newton Abbot DEVON GSM Ltd Gloucester GLOUCESTERSHIRE Heber Ltd Stroud GLOUCESTERSHIRE Horstmann Controls Ltd BRISTOL Intelligent Sines Ltd Dorchester DORSET Invensys Climate Controls Ltd Plymouth DEVON NuVision Energy Exeter DEVON Save Energy UK Ltd Poole DORSET Severn Controls Ltd Quedgeley GLOUCESTERSHIRE Spirax-Sarco Ltd Cheltenham GLOUCESTERSHIRE Stock Electronics Ltd Salisbury WILTSHIRE Warmworld UK Ltd Hanham SOMERSET Find out more The Carbon Trust provides an excellent series of guides covering this topic that can be downloade d for free from their website. These include: CTV002 Refrigeration technology overview CTV003 Heating, ventilation and air conditioning technology overview CTG002 Heating control technology guide CTL019 How to implement a building energy management system CTL039 How to implement radiant heating CTL043 How to implement heating zone controls CTL056 How to implement heat recovery in refrigeration CTL057 How to implement adiabatic cooling for refrigeration plant CTL037 How to implement industrial heat recovery equipment They also provide grants and funding opportunities. For more information go to Heater manufacturers Archie Kidd (Thermal) Ltd Devizes WILTSHIRE GSM Ltd Gloucester GLOUCESTERSHIRE Hamworthy Heating Ltd Poole DORSET Nu-Heat UK Ltd Honiton DEVON Powrmatic Ltd Ilminster SOMERSET Spirax-Sarco Ltd Cheltenham GLOUCESTERSHIRE Thermal Technology (Sales) Ltd Westbury WILTSHIRE Zenex Technologies Ltd Plymouth DEVON Refrigeration Autonumis Ltd Tetbury GLOUCESTERSHIRE Celsius Systems UK Ltd Exeter DEVON Hy-Save (UK) Ltd Bath SOMERSET Thermal Engineering Systems Ltd Steam traps Cullompton DEVON Gardner Energy Management Ltd BRISTOL Spirax-Sarco Ltd Cheltenham GLOUCESTERSHIRE TLV Euro Engineering UK Ltd Cheltenham GLOUCESTERSHIRE Climate sensors Bristol Industrial & Research Associates Ltd BRISTOL
11 21 Building fabric The thermal performance of the walls, roof, floors, windows and doors of a building will have a major impact on heating and cooling costs. It is estimated that a typical office loses around 60 per cent of its heat through the building fabric. By installing extra insulation, upgrading windows and doors and adding draught proofing it will be easier to control building temperature. 3 Image courtesy of Peninsula Innovations Ltd. In the south west of England there is a whole range of building stock used for commercial purposes. Small businesses operating from domestic premises may be able to improve thermal performance by implementing cavity wall insulation, improving insulation in the roof cavity and installing high rated energy efficient windows. Office-based organisations might focus on insulation and heat loss through doors and windows. Industrial organisations might look at improving the thermal performance of cool rooms and improved management of doors and loading areas. New buildings and major refurbishment projects represent an excellent opportunity to improve thermal performance. Improvement beyond the energy performance requirements of Part L2 of the Building Regulations 2006 can further reduce heating and cooling costs. High levels of thermal performance can, when combined with renewable energy sources such as a ground source heat pump, lead towards achieving a zero carbon building. Find out more The Carbon Trust provides an excellent series of guides covering this topic that can be downloaded for free from their website. These include: CTV014 Building Fabric Technology Overview CTL062 How to Implement Cavity Wall Insulation CTL063 How to Implement Draught Proofing CTL064 How to Implement Roof Insulation They also provide grants and funding opportunities. For more information go to Manufacturers and suppliers Advanced Panel Systems (UK) Ltd Callington CORNWALL Bradford Building Supplies Yeovil SOMERSET Burdens Environmental BRISTOL CarbonEco Ltd Exeter DEVON Kleeneze Sealtech BRISTOL Minster Insulation and Dry Lining BRISTOL ModCell BRISTOL Non-domestic insulation installers Eaga Insulation Various Locations Mark Group Various Locations Only a limited number of suppliers and installers have been listed as there are a large number in the south west. 3. Carbon Trust CTV014 Building Fabric Technology Overview
12 23 Building fabric Sustainable Design It is not just the amount of energy used to run a building that will have an impact on the environment. When carrying out construction work there are other factors, such as the ecological impact of the development and the environmental impact of the materials that have been specified, that will contribute to the overall sustainability of the project. BREEAM, the BRE Environmental Assessment Method, is a tool that can be used to assess the environmental impact of a new building project. It was used to assess the Environment Agency s new head quarters in Bristol which recently achieved the highest score awarded for a BREEAM Offices design and procurement assessment. Sustainability South West (SSW) is the independent Champion Body for sustainable development in the South West of England. Future Foundations, now part of the region s Constructing Excellence initiative, provides information on sustainable construction in the south west. It also provides a free online tool called the South West Sustainability Checklist which aids planners and developers in making sustainable decisions at the master planning stage of any new building project. Okehampton Business Centre Architectural Design (see also construction, engineering and consultancy services on page 34) Alchemilla Architects Chard SOMERSET Cloud Nine Redruth CORNWALL Gale & Snowden Architects Bideford DEVON gcp Chartered Architects BRISTOL Heetreed Ross Architects Bath SOMERSET Mark Kingsley Architects Bath SOMERSET Terence O'Rourke Bournemouth DORSET White Design Associates Ltd BRISTOL For More Information Directory of registered BREEAM Assessors Carbon Trust Building Design Advice Constructing Excellence Sustainability South West (SSW) South West Sustainability Checklist For an extensive list of architectural practices with energy expertise go to the RIBA Directory of UK Chartered Practices at
13 SWEA Case Study: U Godsell & Sons Ltd. 25 Motors, pumps and drives Electric motors are used in a wide range of applications in business and industry and can account for a large proportion of many organisation s running costs. They can be used to power anything from large industrial pumps to office ventilation systems. There are a number of factors that will have an influence on the efficiency of a motor driven system. Higher efficiency motors (HEMs) use less energy than standard motors and new motors tend to be more efficient than rewound ones. Motors run most efficiently when fully loaded so it is important to select an appropriate motor for the application that they propel. A variable speed drive (VSD) is an electronic device that controls the electrical supply to a motor, enabling it to run at different speeds and better match the speed of the driven machine. In certain applications, especially those that use variable torque, the use of a VSD can result in significant savings. Soft starters and VSDs can also be used to limit the high currents required to start a motor, resulting in less wear and tear on the motor. Electric motors can also be used to drive compressed air systems. The process of compressing air can be wasteful so, where it is necessary to use these systems, it is important to ensure that systems are set up, controlled and monitored effectively. Find out more The Carbon Trust provides an excellent series of guides covering this topic that can be downloaded for free from their website. These include: CTV016 Motors technology overview CTV017 Compressed air technology overview CTL029 How to implement higher efficiency motors CTL034 How to implement motor power optimisers CTL042 How to implement inverter variable speed drives CTL051 How to recover heat from a compressed air system CTL052 How to apply variable speed drives to air compressors GIL152 How to select a variable speed drive They also provide grants and funding opportunities. For more information go to U Godsell & Sons is a dairy farm based in the Stroud District which runs a herd of 200 cows. The annual electricity spend of the farm is approximately 4,000, emitting 28 tonnes of CO2. The farm uses mains electricity for hot water heating, lighting, milking and refrigeration. Severn Wye Energy Agency, a charitable company that delivers a programme of work to develop the sustainable use of energy in the northern part of the region, carried out a free on-site survey of the site as part of the Target 2050 Service offered to small and medium sized enterprises in Gloucestershire. The survey found that the installation of a variable speed drive could cut electricity consumption by 20 per cent and would pay for itself in under five years; that increased capacity of the spring water milk chiller would cost approximately 1000 and provide annual savings of around 300; and that heat recovery equipment to preheat hot water using waste heat from the milk chiller would cost 1000 and provide annual savings of 100. So far, a variable speed drive has been fitted to the vacuum pump used in the milking process and this has produced better than expected results. Further measures will soon be implemented on the basis of this success. Source: Severn Wye Energy Agency Stock image used
14 Motors, pumps & drives Motors, pumps and drives Anstee & Ware BRISTOL APDS Limited BRISTOL Baldor UK Ltd BRISTOL Bosch Rexroth Ltd Cirencester GLOUCESTERSHIRE Brammer UK Ltd Plymouth DEVON ERIKS Redruth CORNWALL Loher GmbH Wadebridge CORNWALL /contractors/controls/loher Lowara UK Ltd Axminster DEVON Severn Controls Ltd Quedgeley GLOUCESTERSHIRE SIEI UK Ltd Kingsbridge DEVON Soft starters Schneider Electric Limited Chippenham Wiltshire Fairford Energy (Fairford Electronics Ltd) Speed control Kingsbridge DEVON Somar International Ltd Truro CORNWALL Stock Electronics Ltd Salisbury WILTSHIRE Monitoring systems (see also metering, monitoring and targeting on page 4) Advanced Energy Monitoring Systems Ltd Ottery St Mary DEVON Ashridge Engineering Limited Okehampton DEVON C3 Resources Ltd Plymouth DEVON Heber Ltd Stroud GLOUCESTERSHIRE Spirax-Sarco Ltd Cheltenham GLOUCESTERSHIRE Fairford Energy and Energy Saving Solutions (ESS) combine to deliver energy reduction solutions for McDonald s Restaurants Ltd. The client, McDonald s Restaurants Ltd, is continuously seeking to reduce its CO2 emissions across its UK restaurants. Tasked with delivering a core aspect of the solution ESS specified the Light Eco, a voltage reduction unit, which has now been deployed in over 1000 restaurants. This solution is projected to save McDonald s over 6000 tonnes CO2 in its first year alone following installation. The anticipated next phase of the programme sees ESS and McDonalds specifying the HFE and XFE Energy Optimising Soft starts which will further reduce CO2 consumption and save typically 2-3 tonnes per annum per unit. The HFE is a single phase unit for use on chillers and freezers. The XFE is a 3 phase unit for use on freezers and HVAC applications. Both are globally recognised products and are proven technology solutions. Fairford are internationally renowned for energy saving products and have been manufacturing for this sector for nearly 30 years. This recent application is the latest in high quality engineering and innovation. Source: Fairford Energy 27 Stock image used
15 29 Power production & control Whether your organisation is looking to improve the efficiency of its on-site power production facilities or wants to control and regulate the power used for process equipment, the south west of England has a lot to offer. With a long established history of involvement in manufacturing, aerospace and other transport-related industries, there are a number of businesses in the region with expertise in this area, from combined heat and power (CHP) systems to voltage regulation equipment. For organisations interested in implementing renewable energy technologies such as biomass and anaerobic digestion, Regen SW provides a number of resources including the Regen SW Renewable Energy Company Directory and the South West Woodshed. For more information go to Regen SW Renewable Energy Company Directory South West Woodshed Find out more The Carbon Trust provides an excellent series of guides covering this topic that can be downloaded for free from their website. These include: CTV031 Process heating technology overview CTG007 Power factor correction technology guide GPG388 Combined heat and power for buildings They also provide grants and funding opportunities. For more information go to Advanced digestion system at Wessex Water Production and control equipment ABB Ltd Stonehouse GLOUCESTERSHIRE Barr & Paatz Ltd Totnes DEVON Gardner Energy Management Ltd (GEM) Hamworthy Combustion Engineering Ltd (HCEL) BRISTOL Poole DORSET Rolls Royce BRISTOL Schneider Electric Limited Chippenham WILTSHIRE Socomec UPS Cirencester GLOUCESTERSHIRE Spirax-Sarco Ltd Cheltenham GLOUCESTERSHIRE Combined heat and power Alfagy Ltd Moreton-in-Marsh GLOUCESTERSHIRE Centrax Gas Turbines Newton Abbot DEVON Voltage regulation NuVision Energy Exeter DEVON Training Aztec Technical Services Ltd BRISTOL EEF Case Study: Wedge Group Galvanising Ltd Wedge Group Galvanizing Ltd is the nation s largest hot dip galvanizing group and operates 14 facilities across the UK, including one in Crediton, Devon (South West Galvanizers Ltd). Wedge Group is committed to working in ways which reduce environmental impact and reduce costs by using resources more intelligently. Quite often, these have gone hand-in-hand for the company. Confronted with the prospect of tightening emission limits, Wedge Group explored, developed and implemented environmental controls which have saved a considerable amount of energy and cut atmospheric emissions across its portfolio of plants. In order to comply with the Pollution Prevention and Control (PPC) permitting system, Wedge Group needed to demonstrate compliance with the limits set for total particulate emissions from its operations. Traditionally, the industry has tackled emissions by installing high energy use abatement equipment which captures pollutants emitted by the galvanizing process. However, Wedge Group decided to investigate more efficient alternatives by reducing pollution at source. Working with its chemical supplier, Wedge Group was able to re-engineer its processes to use a low fume flux for the galvanizing process which avoided the need for expensive abatement of emissions. The pilot was completed at the Crediton site and was a major success and has since been rolled out across other Wedge Group facilities. As well as keeping emissions below the required levels and reducing the amount of raw materials used, the new process has resulted in a significant reduction in energy consumption giving Wedge Group considerable savings in energy costs. Source: EEF
16 31 Consultancy services The south west is home to a range of energy management and engineering consultancy firms that can advise on how to improve the efficiency of buildings and processes. Whether your organisation is looking for a building energy assessor or a process control expert, there is someone in the region who can help. University Expertise Universities in the south west can provide new ideas, expertise, advanced technologies and commercial opportunities to help your business with productivity and growth. Environmental technology and know how is a key sector for universities in the south west and with the goverment s recent move to designate the region as the UK s first Low Carbon area, this is now even more significant. There are a number of research centres with energy efficiency expertise in the region including the Centre for Energy and the Environment at the University of Exeter, the Environmental Technology Centre at the University of Plymouth and the Institute for Sustainable Energy and the Environment at the University of Bath. Universities South West (formerly HERDA-SW) provides an easy means of discovering the services, CIBSE Low Carbon Consultants are a body of professionals competent to minimise energy use and carbon emissions from buildings both in design and operation. For more information and a complete list of registered consultants go to resources, expertise and facilities on offer at the 13 universities in the region through a single gateway. For more information go to Knowledge Transfer Partnerships (KTP) KTP is a UK-wide programme enabling businesses to improve their competitiveness and productivity through accessing knowledge, technology or skills from the UK s universities, colleges and research and technology organisations. The knowledge sought is embedded into the business through a project or projects undertaken by a recently qualified person recruited for the purpose to work in the business. For more information on KTP go to Building services engineers Axiom Building Services Gloucester GLOUCESTERSHIRE Building Mechanical Electrical Ltd Plymouth PLYMOUTH Building Services Sustainability and Environmental Consultancy Ltd (b:ssec) Westbury WILTSHIRE BJP Consulting Group Bath SOMERSET Engineering Design Practice Exeter DEVON Ferguson Brown Ltd BRISTOL GPJ Consulting Engineers Camborne CORNWALL Jassoc Ltd BRISTOL Jones King Partnership Ltd BRISTOL Kelly Taylor & Associates Kingsbridge DEVON King Shaw Associates Ltd Bath SOMERSET Neptune Building Services Ltd Gloucester GLOUCESTERSHIRE Peter Warm Stroud GLOUCESTERSHIRE html QED Engineers Axbridge SOMERSET RF & A Consultants BRISTOL Services Design Solution Ltd Plymouth DEVON Silcock Dawson & Partners BRISTOL TJL Associates Bridport DORSET Continued overleaf
17 33 Consultancy services Building Assessment Services (see also construction, engineering and consultancy services on page 34) Aadnunn Energy Assessors Truro CORNWALL Andy Pickersgill Ltd Stroud GLOUCESTERSHIRE Darren Evans Assessments Chipping Sodbury GLOUCESTERSHIRE EPCsouth Bournemouth DORSET gcp Consulting BRISTOL Global Action Plan (South West Office) Exeter Devon Green CO 2 plc Cirencester GLOUCESTERSHIRE Inergy UK Ltd Chippenham WILTSHIRE JRP Solutions Badminton GLOUCESTERSHIRE KCE Energy and Environment Clevedon SOMERSET Nick Osmaston Independent Stoke PLYMOUTH Energy Consultant The Green Consultancy Radstock BATH UP Commercial Energy Assessors Exeter DEVON Energy Performance of Buildings Directive As part of the Energy Performance of Buildings Directive (EPBD), the Department of Communities and Local Government has introduced a number of measures to help improve the performance of property in the UK. Energy performance certificates (EPCs) have been introduced to provide efficiency ratings and recommendations for improvement in commercial buildings and public buildings are required to display energy certificates (DECs). Other measures include the requirement for the inspection of air conditioning systems and provision of advice and guidance for boiler users. For more information and details of how to find an accredited assessor go to European Portal for Energy Efficiency in Buildings BUILD UP is a new European web portal that provides free access to a wide range of information on best working practices, technologies and legislation for energy reduction in buildings. It aims to promote better and smarter buildings by connecting all building professionals, locals authorities and occupants alike. Energy management services (with head offices in south west) Aardvark EM Ltd Taunton SOMERSET Abricon Clifton BRISTOL Bailey Partnership Plymouth DEVON Clifford Talbot Partnership BRISTOL Enact Energy Management Ltd Camborne CORNWALL Engineering Design Practice Exeter DEVON JRP Solutions Badminton GLOUCESTERSHIRE Teamwork Energy Bureau Services Ltd Nailsea SOMERSET The Coefficient Company Ltd Bath SOMERSET The Energy Reduction Consultancy Blandford Forum DORSET Energy management services (with regional offices in the south west) Dalkia BRISTOL Environ Exeter DEVON IT Power BRISTOL MITIE Energy Exeter DEVON SLR Consulting Ltd REGION WIDE Building maintenance services Integral UK BRISTOL Consultancy, training and product testing EEF BRISTOL EnVision Exeter DEVON Global Action Plan (South West Office) Exeter DEVON Forge Environmental Ltd Crediton DEVON GASTEC at CRE Ltd Cheltenham GLOUCESTERSHIRE Groundwork South West Plymouth DEVON ext 352 Low Carbon Futures Camborne CORNWALL Continued overleaf
18 Consultancy services Sustainable building consultants Centre for Energy & the Environment Exeter DEVON centres.exeter.ac.uk/cee at the University of Exeter Ecos Trust Langport SOMERSET Engineering Design Practice Exeter DEVON Sustain Ltd BRISTOL Vertigo Sustainable Development Consultants BRISTOL KTP between Bandvulc Tyres and the University of Plymouth In 2006 our energy costs increased by approximately 40 per cent, but with our KTP Associate s help building on the work already started by our technical team we reduced carbon emissions as well as cutting our energy bills. This pivotal KTP project with the University of Plymouth made a significant impact on reducing Bandvulc s energy consumption and contributed to maintaining our competitive edge within the retreading industry. We believe that a successful and profitable business can be a responsible one too. Patrick O Connell, Director, Bandvulc Group Source: University of Plymouth 35 Construction, engineering and consultancy services (with regional offices in the south west) AECOM, Bristol and Exeter Arup, Bristol Atkins Ltd, various locations Buro Happold, Bath Black and Veach Ltd, various locations BMT Isis, Bath and Weymouth Davis Langdon Engineering Services, Bristol and Plymouth DTZ, Bristol and Cheltenham Ernest Griffiths Consulting Engineers, Bristol Halcrow Yolles, Bristol, Exeter and Swindon Heber Ltd, Stroud Hoare Lea Consulting Engineers, Bristol, Plymouth and Poole Hyder Consulting Ltd, various locations Mott MacDonald, Bristol and Exeter Pell Frischmann Consultants, various locations Peter Brett Associates LLP, Bristol and Taunton Royal Haskoning, Bodmin and Exeter Ridge and Partners LLP, Bristol RSK Group plc, Bristol Scott Wilson, various locations Sinclair Knight Merz, Cirencester Turley Associates, Bristol Turner and Townsend, Bristol URS Corporation Ltd, Bristol Wardell Armstrong International, Truro Waterman Group, Bristol WYG, Bristol and Swindon WSP, various locations Image courtesy of University of Plymouth & Bandvulc Group
19 37 Advice and support (see also acknowledgements section on page 38) Centre for Sustainable Energy BRISTOL Community Energy Plus Camborne CORNWALL Advice and support Carbon Trust The Carbon Trust was set up by Government to accelerate the move to a low carbon economy by working with organisations to reduce carbon emissions and develop commercial low carbon technologies. It offers advice, support, site visits and information on technologies and techniques. For more information call or go to Business Link Provides the information, advice and support you need to start, maintain and grow a business. It exists to help anyone thinking of starting a business; to help small and medium-sized businesses to grow and to help businesses deal with problems, challenges and opportunities. Its service is impartial and its motivation is to provide practical solutions to customers by offering a fresh insight and independent advice. For more information call or go to Manufacturing Advisory Service in the South West (MAS-SW) MAS-SW is a provider of advice and hands-on support for manufacturers aiming to achieve sustainable success. Set up to help smaller businesses improve productivity, reduce waste and compete more effectively, MAS-SW aims to make a significant difference to manufacturing industry in the region. For more information call or go to Business loans from the Carbon Trust The Carbon Trust s Interest free loans are designed to reduce carbon emissions by enabling businesses to overcome the capital barrier of purchasing energy saving equipment. More information about loans can be found in document LNS0681 which is available on the Carbon Trust website Information about the Salix Fund for UK public sector bodies can be found at www. salixfinance.co.uk/loansprocess Enhanced Capital Allowance Scheme The Enhanced Capital Allowance (ECA) scheme is a part of the government s programme to manage climate change, and is designed to encourage businesses to invest in energy-saving equipment. The scheme provides a tax incentive to businesses that invest in equipment that meets published energy-saving criteria. The Energy Technology List (ETL) details the criteria for each type of technology, and lists those products in each category that meet them. Many technology categories are included in the list, from motors and drives to automatic monitoring and targeting equipment. For more information go to Devon Environmental Business Initiative Budleigh Salterton DEVON Ecos Trust Langport SOMERSET Exeter Carbon Club Exeter DEVON Energy Action Devon Plymouth DEVON Low Carbon Cornwall Camborne CORNWALL Low Carbon Futures (formerly C3A) Camborne CORNWALL Severn Wye Energy Agency Highnam GLOUCESTERSHIRE Regional branches of national organisations Carbon Trust REGION WIDE Energy Saving Trust REGION WIDE EEF REGION WIDE Further Resources Our South West Net Regs Provides information and guidance towards a sustainable future for the south west. Includes a business section and energy management guide. The Energy & Environment Management Groups provide continuing professional development, information exchange, specialist training and networking opportunities. Provides free environmental guidance for small and medium-sized businesses in the UK. South West TUC Green Workplaces Project The South West TUC is leading a regional green workplaces project funded by the South West RDA. The project is developing the role of trade unions in changing environmental behaviour in the workplace and offers support, advice, training and resources. Climate change is an important issue for unions because it directly impacts on jobs, the working environment, and the economy. Trade union members are keen to see their employers doing more to tackle climate change, and want to get involved. As the transition to a low-carbon economy progresses there will be opportunities for workers skill development and job creation in new areas of employment. To find out more call or go to
20 39 Acknowledgements About Regen SW We wish to thank the following organisations for their help in developing this guide: Business Link provides the information, advice and support you need to start, maintain and grow a business. It exists to help anyone thinking of starting a business; to help small and medium-sized businesses to grow and to help businesses deal with problems, challenges and opportunities. Our service is impartial and our motivation is to provide practical solutions to customers by offering a fresh insight and independent advice. Call us on or visit EEF is dedicated to the future of manufacturing. Everything we do is designed to help manufacturing businesses evolve, innovate and compete. With our unique combination of climate & environmental business services, HR & legal advice, government representation and industry intelligence, no other organisation is better placed to provide the skills, knowledge and networks you need to thrive Regen SW is the sustainable energy agency for the south west of England. Established in 2002, Regen SW continues to help transition the south west towards a low-carbon-based economy by supporting the deployment of renewable and energy efficiency technologies in the region, and by supporting businesses operating in the sustainable energy sector. Regen SW works closely in partnership with regional and national organisations and is engaged in fostering collaboration with other regions in the UK and overseas. The South West RDA leads the development of a sustainable economy, investing to unlock the region s business potential. It provides core funding to Regen SW to support the sustainable energy sector. Energy Action Devon is a sustainable energy charity, working with public and private sector, community groups and individuals across Devon to fight climate change and fuel poverty. We work on a variety of energy related projects and initiatives at a local, regional and national level The Federation of Small Businesses (FSB) is the UK s largest campaigning pressure group promoting and protecting the interests of the self-employed and owners of small firms. In addition, FSB Member Services is committed to delivering a wide range of high quality, good value business services to its members Low Carbon Cornwall (LCC) host the Cornwall Sustainable Energy Partnership (CSEP) play a central role in coordinating, facilitating and managing the priority low carbon delivery objectives for Cornwall. It is part of the new Cornwall Development Company and works with partners in Cornwall, the south west, nationally and internationally Severn Wye Energy Agency (SWEA) is a charitable company, with a programme of work to develop the sustainable use of energy in the south west and also in mid Wales. It runs a portfolio of projects and services in energy efficiency, renewable energy and sustainable transport Energy Saving Products and Services Company Directory The Energy Saving Products and Services Company Directory is managed online by Regen SW. The directory currently lists over 100 organisations covering a broad range of products and services related to the energy efficiency sector. Membership of the directory is free, subject to the company having a base or regional operations in the South West of England. For further details of the companies listed in this guide and for up-to-date information, go to the Regen SW Energy Saving Products and Services Company Directory website: If you are a business that would like to join the directory, or require help in sourcing products or services within the energy efficiency sector, please contact: Business Support Regen SW