1. Developing the business case in Bristol City Council: Specific considerations for public sector Paul Barker, Energy Management Officer
2. Reducing Carbon Emissions BCC CO2 reduction target 40% by 2020 BCC emissions around 60,000 tonnes Schools, leisure centres, offices, museums, etc 40% reduction equates to 2,000 tonnes per annum or 2,000 3kW PV Systems per year OR 10 500kW biomass boilers per year OR Much cheaper £/tonne energy efficiency!
3. Biomass boilers in Bristol Blaise Nursery – 1st biomass boiler in Bristol in 2006 supplied from council’s own tree surgery waste Incorporating a wood fuel station to process tree surgery waste into wood fuel for further Bristol biomass boiler installations Installation of biomass boilers as part of BSF School refurb and retrofit to other sites Bristol by end of 2011 will have the largest biomass boiler cluster in the SW and 2nd largest in England Using own Wood fuel supply from own resources, to expand use of biomass boilers at the lowest cost
4. BCC EMU Installations Fonthill Primary Horfield Leisure Centre M-Shed Bower Ashton The Park Gay Elms Primary
5. Expanding wood fuel supply in the West Own resources Developing Blaise into a site capable of processing all forms of LA wood waste into wood fuel
6. The Game Changers? – FIT and RHI and the business case Capital investment reduced due to government spending review Use of Prudential Borrowing and other long term borrowing needed to meet CO2 target Using FIT and RHI to repay borrowing
8. Case Study 1 – Small PV 3.9kW unit - Cost: £15,600 (£4,000 per kWp) FIT repayments - £1,300 per annum Energy generation saving - £200 per annum Simple Payback – 10.5 Years With borrowing @5.5% – 16 years BCC payback (with free elec for school) – 20 years BUT over 25 years if include cleaning, inverter replacement, drop in performance CO2 saving – 1.5 tonnes Cost per tonne of CO2 – £10,080
10. Case Study 2 – Medium PV 49kW unit Cost: £149,000 (£3,000 per kWp) FIT repayments - £14,000 per annum Energy generation saving - £2,000 per annum Simple Payback – 9 Years With borrowing @5.5% – 14 years BCC payback (with free elec for school) – 16 years Only 18 years (ish) if include cleaning, inverter replacement, maintenance CO2 saving – 25 tonnes Cost per tonne of CO2 – £6,080
12. Case Study 3 – Biomass 300kW unit Cost: £450,000 RHI repayments - £20,000 per annum Energy generation saving (oil to wood fuel) £23,000 per annum Simple Payback – 10 Years With borrowing @5.5% – 16 years Includes cleaning and servicing CO2 Saving – 180 tonnes Cost per tonne of CO2 - £2,500
13. BCC Plan of Action Solar PV on Schools Programme £1 million of Prudential Borrowing Free PV with free Elec to school BUT school must: Agree to install energy efficiency measures Agree to energy awareness programme with staff and pupils Hope to see savings of 25 tonnes per Primary School rather than 2-5 tonnes if PV only
