Southwark’s New District Heating Network

1. Southwark’s New District Heating Network

2. Southwark’s Carbon Reduction Strategy Borough-wide CO2 emissions down by 80% by 2050 Council housing stock emissions down by 15% by 2022 Fuel poverty reduced

3. Background Section 106 agreement tied to waste facility site. On-site renewable energy generation not feasible. Agreement asked for community renewable energy scheme instead.

4. De-centralised Heat Generation Proposal Use SELCHP to distribute heat to local estates Projected emissions reduction of 7,716 tonnes of CO².

5. Financial incentives For Southwark: • Cheaper than gas • Low carbon • Cost benefits to increase over time For Veolia (Waste PFI partners): • Price received was greater than electricity • Cover construction and maintenance costs

6. Steam drives a turbine to generate electricity Condensed back to water and returned to boiler We bleed off steam during this process It transfers its remaining energy into our network How it works

7. : Locations of estates benefiting : Location of SELCHP

8. How it works • 1,200 Southwark properties benefiting • Scheme funded by Veolia • Potential to supply commercial customers

9. TechnicalDetails • 5km of pipe laid beneath roads • Minimal heat loss • Leak detection system

10. TechnicalDetails • SELCHP pumps drive 110 °C water around the network • Heat exchangers at each boiler house

11. Delivering the Project

12. Delivering the Project

13. Problem solving • Challenge of finding route for pipes: • Potential damage to trees • London Overground timetable • Relocation of certain plant rooms

14. Problem solving • Need for contingency solutions • Desire to keep existing boiler houses • Disruption to residents being minimised

15. Timetable to completion • June and July: Completion of pipe laying and boiler room modifications • August and September: Testing and calibration • October: Heat delivered