Irish Building Control Institute 2011 Conference

Transcription

1 Sustainable Development and Renewable Energy Irish Building Control Institute 2011 Conference Westport Jay Stuart RIBA Managing Director DWEcoCo Ltd.

2 Delap & Waller EcoCo Ltd. Integrated Sustainable Design Consultants 2008 Green Organisation of the Year Award UK Carbon Trust accredited Strategic Design Advice consultants CIBSE Low Carbon Consultants BREEAM International accredited assessors Consultants to Ireland s Enterprise Ireland Leadership 4 Growth: Sustainable Built Environment Programme

3 2015 : A Sustainable Construction Industry Legislative Drivers for Sustainable Development EU Kyoto Commitments, EPBD, Building Regulations, LAP s, DCC Development Plan Recast version of EPBD targets 20/20/20 requirements new EPBD amendment passed for 100% RE on site by 2018 EU require Local Authourity Biodiversity Plans Air Quality Directive 2008/50/EC dated Landfill charges to continue increasing Carbon taxes implemented for Ireland in 2010 Code for Sustainable Homes in UK Ireland, UK propose zero carbon standards for new buildings between 2013 and 2016 Zero Carbon / Passive House / Net Zero Carbon / Code 7 / Carbon Neutral

4 2015 : A Sustainable Construction Industry Market drivers for Sustainable Development Corporate Social Responsibility and corporate environmental policies BER Rating for local market Environmental rating ( BREEAM and LEED ) for multinationals Energy cost impact on service charges and rent Long term value Future proofing projects with local energy systems( energy security ) Future proofing projects with renewable energy systems ( low carbon ) Partnerships with energy services companies ( ESCOs) Government funding initiatives Financial institutions may ultimately only lend / invest in projects that meet their sustainable requirements to protect the value of their long term investment.

5 2020: A Sustainable Construction Industry All buildings will have to be Zero Carbon Buildings operating on renewable energy with minimal impact on the environment. office buildings without air conditioning dwellings without heating systems renewable energy in every building local energy networks low environmental impact construction materials design for disassembly rainwater harvesting and storage low water use services and water meters low energy water treatment systems green roofs and walls landscaping integrated with water resources strategy no waste to landfill Significant design work for early stage project approvals.

6 Green is just Good Business Reduce energy and water costs Future proof investment against increasing resource costs Avoid carbon and environmental taxes Obtain a higher Building Energy Rating to increase its value Obtain a higher BREEAM / LEED rating to increase its value Create more comfortable, healthier living and working environments Generate own renewable energy and sell it to others for a profit Achieve energy security Innovative financing possible Meet your and others CSR objectives Costs 3% to 8% more to build with ROI of min. 10% (..call it green if it suits you. )

7 Clonburris Masterplan 2007 Sustainability Toolkit & Design Standards 80% DH, RE, 60% energy reduction, 5% Passivhaus Mixed Use development with up to 16,000 dwellings

8 Sustainable Strategies and Required Actions

9 District Heating LUCAN ADAMSTOWN CLONBURRIS GRANGECASTLE Industrial Park Potential 26,000 customers

10 District Heating Requirements: 30% renewable heating energy on site 30% renewable electricity A district wide ESCo ( energy services company ) 1m wide reservation in streets for district heating pipes

11 Clomakilty Study

12 Detailed Financial Analysis

13 RE Technology ROI

14 RE Technology Feasibility Economic parameters (20 years) Energy cost inflation Discount rate % % Scenario A Scenario B Scenario C Scenario D Biomass Boilers Biomass CHP + Biomass boilers Biomass CHP + Biomass boilers + PV panels Biomass Boilers + Solar thermal Net Present Value 7.5% 7.5% 6,140,082 10,139,138 12,738,944 6,019,944 Net Present Value 7.5% 5.0% 11,756,237 17,707,493 21,464,811 11,732,303 Net Present Value 7.5% 2.5% 20,555,246 29,565,076 35,135,905 20,682,036 Internal Rate of Return 7.5% 5.0% Net Present Value 5.0% 7.5% 2,642,183 5,425,352 7,304,228 2,462,126 Net Present Value 5.0% 5.0% 6,494,327 10,616,519 13,289,337 6,380,257 Net Present Value 5.0% 2.5% 12,414,209 18,594,178 22,487,106 12,401,545 Internal Rate of Return 5.0% - Net Present Value 2.5% 7.5% 167,242 2,090,111 3,458,891 Net Present Value 2.5% 5.0% 2,842,211 5,694,912 7,615,014 2,665,581 Net Present Value 2.5% 2.5% 6,865,852 11,117,188 13,866,578 6,758,146 Internal Rate of Return 2.5% - 11% 9% 6% 13% 11% 8% 14% 11% 12% 10% 8% - 55,210 6%

15 Sustainable Concepts Nearly Zero buildings/development Net Zero bldg/dev Energy Positive bldg/dev Edible Landscape Industrial Ecology Local Energy Networks Zero Waste Development Zero Soil Removal Low Impact Material Asphalt solar collector Interseasonal energy storage Vibro compaction stone pile foundations Integrated Design Process (IDP) Cradle to Cradle Design Resilient Design Biomimicry Design for Disassembly (DfD)

16 Thurrock and Clonakilty DH in key areas Key indicators for DH Efficiency Ireland Trust Carbon Offset Fund

17 Low Energy Design 1. Glazing ratio ( 40% glazing / 60% insulated wall ) 2. Natural ventilation strategy 3. Solar shading 4. Glazing specification 5. Window design 6. Airtightness 7. Insulation > wall construction 8. Thermal bridging 9. Efficient systems 10. Renewable energy

18 Passive House Standard Max. 10 W / m2 heating energy Very airtight 200 mm insulation throughout Windows with 0.8 W/m2k U-value ( triple glazed or innovative ) HRV

19 Long Term Financial Benefits 30,000, ,000, CSCB Model Conventional 20,000, Model A1 Model Controls Manifold + Induction Exhaust 15,000, Manifold + Induction Exhaust + Heat Recovery Manifold + Induction Exhaust + Econet 10,000, ,000,

20 Added Value Commercial Target Typical naturally ventilated office 250 Kwh/m2/yr Estimated target for A rating 150 kwh/m2/yr reduction 100 Kwh/m2/yr = 20/m2 saving ( gas & electricity ) = 200 /m2 added 10 year commercial finance 50,000 m2 x 200/m2 = 10 M added value

21 Innovative Renewable Energy Intermittent renewable sources Storage Heating /cooling cycles Heat pumps Stirling engines Micro CHP Integration of systems Controls

22 Interseasonal Energy Storage in the Ground

23 Asphalt Solar Collector Most cost effective solar system Interseasonal heat storage in ground No boiler in this school In use in 5 buildings in the UK

24 SolarWall Sainsbury s Logistics Centre, UK

25 Biomass Energy Anaerobic digestion Pyrolysis

26 Biochar 2,000 yr old terra pretta soil Biochar fertiliser Ordinary soil Biochar Biochar

27 Zero Emissions System BIOMASS CHAR BIOMASS BOILER CO2 HEAT PYROLYSIS BIO OIL ALGAE PHOTO REACTOR CO2 PYROLYSIS SYNGAS CHP A carbon negative zero emissions renewable energy supply system.

28 Biorefinery Irish Competence Centre for Biorefining and Bioenergy

29 Nanosolar Silicon Valley company automated factories in US and Germany faster, cheaper, increased supply 40% reduction in cost in 3 yrs efficiency improved 11% to 20%

30 Solar Stirling CHP 1.8 KW electricity at 15% efficiency in trials

31 Chemical Heat Pump 3 stage chemical heat pump and storage system powered by solar thermal Energy Savings = 1,400 pa CO2 savings = 6,400 kg pa Annual Energy Production: 100% Cooling = kwh 50% Heating = kwh 100% DHW = kwh Madrid Test House

32 Wind Energy

33 Heat Pumps Heat pumps to replace oil as cheaper and a single set of standing charges Air heat pumps are cheap to instal Can be integrated into ventilation system Group systems Variety of systems developing to suit market segments

34 Summary Net Zero Buildings and developments Local energy networks Community action Retrofit Cheap energy storage Heat pump technology Wireless controls and energy management systems