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PART L Problem or opportunity?

PART L Problem or opportunity?. Bill Wright Corporate Energy and Environment Manager, John Lewis plc. John Lewis and Waitrose. 27 Department Stores 179 Supermarkets – and growing 3 Factories Farm Leisure Facilities – including a castle!. ENERGY COSTS.

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PART L Problem or opportunity?

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  1. PART LProblem or opportunity? Bill Wright Corporate Energy and Environment Manager, John Lewis plc

  2. John Lewis and Waitrose • 27 Department Stores • 179 Supermarkets – and growing • 3 Factories • Farm • Leisure Facilities – including a castle!

  3. ENERGYCOSTS Combined energy bill of over £35M! OUCH!!!!!!

  4. COST OF ENERGY • Over the past three years 100% cost increase • Straight off bottom line • Now a major overhead

  5. CARING FOR OUR ENVIRONMENT D

  6. CARING FOR OUR ENVIRONMENT D 1kwh electricity = 0.43kg CO2 1kwh gas = 0.19kg CO2

  7. CARING FOR OUR ENVIRONMENT D 1kwh electricity = 0.43kg CO2 1kwh gas = 0.19kg CO2 JL Oxford St produces OVER 4000 tons of CO2 each year And JL Victoria produces OVER 3000 tons

  8. OUR AIMS • Build efficiently

  9. OUR AIMS • Build efficiently • Reduce operating costs

  10. OUR AIMS • Reduce consumption • Reduce costs • Reduce emissions

  11. DOCUMENT L2A • Applies to new build • Reduce CO2 emissions • Improve building performance • Provide final user information

  12. SERVICES DESIGN • Design for energy efficiency • Be aware of new regulations • Install meters to enable 90% of energy usage to be monitored. • If over 1000m2 use automatic meter reading

  13. Lighting • Use efficient lighting sources HF ballasts, T5, CDMT spotlights etc • Zone and time controls essential • Assess lighting level required • Use natural daylight where possible • Switch off lights when not required - PIR

  14. ELECTRIC MOTORS • Use efficient motors • Use variable speed drives – WHERE PRACTICABLE • Size motor correctly • ECA list?

  15. BUILDING MANAGEMENT SYSTEMS • Can control all building functions. • Keep it simple! • They are not the answer to everything!

  16. INFORMATION • Estimate power consumption. • Provide customer with good records. • Energy Log Book?

  17. PART L2B • Applies to existing buildings and extensions. • Does not apply if work only involves replacement equipment, or a few additional lights to existing circuits.

  18. CONSEQUENTIAL IMPROVEMENTS! • Applies to building work associated with an existing building over 1000m2 in area. • Improvements to original building of 10% of cost of additional work. • Compliance can be upgrading existing services and / or controls. • Upgrade lighting if necessary.

  19. RENEWABLE ENERGY • Requires renewable energy sources to be considered. • Some local authorities now require a minimum 10% renewable energy sources on site for planning approval. • Difficult to achieve economically

  20. RENEWABLE ENERGY SOURCES • Wind power • Photo-voltaic • Solar Thermal • Ground Source heat pumps • CHP ( Combined heating and power) • Biomass boilers

  21. ECONOMICS • None of renewable sources are truly economic • Assess sources for customer

  22. CONCLUSION • Gain knowledge of Building Regulations requirements • Design accordingly • Be pragmatic • Commission thoroughly all installations • Provide all necessary information. • It is not that difficult!

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