Shaw Renewables specialise in the design, installation and maintenance of low carbon bioenergy systems.

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2 Shaw Renewables specialise in the design, installation and maintenance of low carbon bioenergy systems. Thermal energy: Biomass Boilers Heat Networks Biomass CHP Electrical energy: Anaerobic Digestion Biomass CHP Turnkey solutions that work for your business Each system we create is intelligently designed, skillfully installed and delivers quality everytime. We are passionate about building a business that delights its customers, values and nurtures its employees and sets new standards of excellence in the renewable energy industry. We have over a decade of experience designing and installing mechanical and electrical engineering into the heating and renewable industry.

3 REDUCE YOUR FUEL COSTS Renewable energy is one of the most dynamic and fast growing industries in the world. Renewable and sustainable fuels are among the most cost effective sources of thermal and electrical energy available. Advances in technology have turned sustainable, low-carbon fuels into an efficient and profitable means to generate energy. Renewable energy investment is about more than cutting carbon emissions, it is also vital for energy security. Reducing our reliance on imported fossil fuels is essential as the price per kwh of energy from oil, coal and natural gas escalates. CUT YOUR CO 2 EMISSIONS Increasingly, British businesses and communities are investing in renewable energy and benefitting from: Reduced fuel costs Smarter waste and by-product management Increased revenue (subsidies & open market) Attractive return of investment Waste products becoming a profitable commodity Bioenergy fuels such as wood biomass, and biomethane provide over 70% CO2 savings compared to the European fossil fuel average

4 BIOGAS Anaerobic Digestion CHP Gas to grid Anaerobic digestion is one of the most versatile energy solutions the UK has at its disposal. Making the most of local resources, the AD process utilises by-product, food waste, agricultural waste and works well within the water treatment process. By-product - to - energy Many of our clients have reduced their transport and logistical costs by using their by-product as a feedstock in their AD plant. This reduces their carbon footprint and the remaining matter, digestate, can be used or sold as a nutrient rich fertiliser. Sewage - to - energy Using anaerobic digestion to stabilise organic sludge and accumulate the methane released produces a sustainable commodity, gas, from matter otherwise deemed to be hazardous. Anaerobic digestion (AD) is a natural process where organic matter is broken down by microorganisms, many of which are intolerant of an oxygen rich environment. As decomposition takes place, methane is released. The methane that is accumulated can be: Combusted in an engine (CHP) to generate electricity and heat Upgraded and injected into the national grid Used as a transport fuel We have partnered with to deliver highly efficient anaerobic digestion plants to the UK. When you choose Shaw Renewables and BioConstruct you are receiving nearly two decades of experience and expertise in the design, planning and construction of anaerobic digestion plants. There is no one-size-fits-all solution. Every plant we design is fully tailored to our customer s needs and the feedstock available to them. Experience you can trust We have designed and installed over 250 AD plants worldwide. Tried and tested We successfully operate 20 of our own AD plants.

5 Waste - to - energy Utilising waste in energy production not only reduces waste management costs and energy production costs but also reduces the levels of methane being released directly into the atmosphere - landfills in the UK emitted around 15 million tonnes of carbon dioxide equivalent during MW Waste-to-energy AD plant Case Study - installed 2014 Over 100,000 tons of food waste from industry and local authorities is utilised in this plant to generate 5MW of electricity. The food is fed through a liquid feeding pump and rotar cut that ensures the waste product is small enough for efficient digestion. Once around 70% of gas has been captured, the substrate is pumped to the post fermenter where a further 25% of gas can be accumulated. The methane gas travels to the engine room after it has been cooled and any gas condense has been removed. The methane is then combusted in the engine, powering a generator, producing electricity and heat. The engine coolant retains the waste heat emitted from the engine and utilises this to warm the fermenter tanks. The 5MW of electricity generated is fed in to the national grid - enough power for over 2000 households. The digestate is pumped to storage tanks where a further 5% of gas can be accumulated during storage. The digestate is rich in nutrients, which makes it a perfect fertiliser. Fermenters post fermenter CHP Storage Tanks

6 biomass CHP combined heat & power Biomass CHP solutions from Shaw Renewables begin at a capacity of 50kW electric and 100kW thermal. Biomass CHPs can be used as a stand-alone system or as part of a cascade, allowing you to build a system that is right for your energy requirements. We work with world leaders in wood gasification and CHP development to offer you reliable and bespoke systems that can be built on site or arrive in a container allowing for a short installation time and minimal disruption. v A reduction in carbon emissions certainly doesn t translate to a reduction in performance - with overall efficiencies of up to 83% the biomass fuelled CHP is a perfect solution for electrical and thermal energy consumers of any scale. There are 3 stages to CHP: Power Generation Heat Recovery Heat use The CHP process uses an engine to drive a generator to produce electricity. As with all engines, heat is generated during combustion, so a coolant is required to ensure the engine does not overheat. The coolant is utilised by a CHP unit to transfer heat for external use. External uses of heat include space heating, domestic hot water and process heat such as drying and industrial manufacturing. CHP plants are also capable of trigeneration, which can generate cooling using an absorption chiller unit. A Biomass CHP plant uses wood gas to drive an electric generator, requiring no secondary fuel, as the wood gasifier feeds syngas directly into the engine. The gasification of wood is similar to wood combustion, however, wood gasification interrupts the combustion process in order to capture a combustible gas. This syngas can then be utilised by the CHP engine to generate the electricity and heat.

7 Wood - to - energy Biomass CHP The gasification process The gasifier is fuelled by untreated wood chip which is delivered to the reformer where it goes through 4 stages: 1.Drying 200 C 2.Pyrolysis 200 C 600 C - tar, coke, CO, CO2, H2 and CH4 are created 3.Oxidation up to 1200 C - chemical products created during pyrolysis are partially burnt 4.Reduction 900 C - the wood chip is finally transformed into low-tar wood gas The wood gas (syngas) is cooled to 110 C in a tubular water/gas heat exchanger and then dry-cleaned in a fabric filter. The residual coal and ash is transported from the gas filter to an ash container via an auger feed. The cooled and cleaned syngas is then injected into the gas control line of the CHP engine. CHP - Mühlhausen, Germany Wood biomass CHP technology has been widely adopted in Germany. In Mühlhausen, a local company supplies businesses, public buildings and dozens of homes with low carbon heating and hot water via a heat network. 4MW of heat Exports over 1MW electricity to grid Uses large buffer tanks to efficiently supply heat Low cost energy supplied to end users

8 A heat network, (or district heating) uses a single heat source to supply multiple buildings with thermal energy that can be used for space heating, hot water and even cooling. Buildings are connected to the single heat source via insulated piping which is most commonly placed underground or through interconnected buildings. Biomass fuels, heat recovery and biogas can all be used to generate a carbon neutral, cost effective thermal energy. Heat sources include: Heat recovery Biomass boilers CHP The scale and scope of a heat network is limitless... Connect entire cities Varied heat sources Space Heating, hot water and cooling Retrofit networking Individual metering Lower fuel costs and reduced CO2 emissions... Sell thermal energy at competitive prices Reduce running costs Reduce dependence on fossil fuels Impact fuel poverty