1. Chelmsford Cathedral case study Cathedrals and Climate Change 2 nd November 2009 Daniel Kenning CEng CEnv Principal Environmental Consultant Harrison Group Environmental

2.  Energy services  energy efficiency and renewables  Thermal modelling  SAP, EPC  Travel planning  Ecology services  Habitat surveys  Bats  Habitat creation and enhancement  Work with local wildlife trusts  Geotechnology, site investigatio n

3. Driver 1 – Carbon Dioxide CO 2

4. Driver 2 – Energy Insecurity Demand  Supply  2009 Supply  Demand 

5. Phased review at Chelmsford  4 phases:  Chapter House  Cathedral and Churchyard  Cathedral Centre  Residences  7 properties  On-site and off-site

6. Review Process  Review of bills  Site survey  Energy  Water  Waste  Transport

12. Survey findings

16. Review Process - Analysis  Total electricity used 2005-2006  43,593 kWh/yr  Measured floor area  Approx. 500 m 2  Baseline demand and CO 2 emissions  87 kWh/m 2 /yr, 36.7 kgCO 2 /m 2 /yr  Comparison with industry benchmarks  Community centres 147 kWh/m 2 /yr  Further education classrooms181 kWh/m 2 /yr  Social clubs200 kWh/m 2 /yr  Step-by-step forecast for proposed measures

17. Review Process - Recommendations  Low cost  Investment  Strategic long term

18. Low cost measures  Simple monitoring and control strategy  Energy-efficient and water-efficient equipment in new kitchen  Design-in facilities for recycling  Complete change to energy efficient lighting  Travel plan for staff and visitors  Energy awareness programme  Hypothecation of savings for investments

19. Example - Monitoring and Targeting  Data collection  Electricity  Water  Waste  Travel  Data analysis  Reporting  Action

20. Investment measures  Central heating with radiators and gas boiler  Effective controls  Effective insulation  Hot water storage compatible with future solar system  Designed to allow flexibility in future type of boiler  Regenerative braking for lift  Internal insulation on walls  Replacement water efficient appliances in toilets

21. Example – Internal Insulation 100 mm glass fibre 40 mm polystyrene Cold Bridge

22. Strategic long term measures  Electricity from zero carbon source  Solar thermal system for hot water in summer

23. Possible CO 2 emissions reduction Years from start of programme % of CO 2 emissions versus baseline Monitoring and control 5% Low cost measures 10% Change from storage heaters to gas boiler with radiators 43% Change to renewable electricity supply 37% Change from gas to biomass 87% Target for UK

24. Next steps  Modelling of the benefits of:  New insulation  New heating system  Cost analysis  Implementation  Monitoring  Next three phases of the programme

25. Modelling and Energy Profile

26. Summary  Carbon and Security  Energy, water, waste, transport  A strategic approach makes it feasible  We would be pleased to help you too.  Daniel Kenning  daniel@harrisongroupuk.com daniel@harrisongroupuk.com  020 7537 9233