Southwark’s New District Heating Network
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www.southwark.gov.uk Southwark’s New District Heating Network
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Southwark’s New District Heating Network. Southwark’s Carbon Reduction Strategy. Borough-wide CO 2 emissions down by 80% by 2050 Council housing stock emissions down by 15% by 2022 Fuel poverty reduced. Background. Section 106 agreement tied to waste facility site. - PowerPoint PPT Presentation
Transcript of Southwark’s New District Heating Network
www.southwark.gov.uk
Southwark’s New District Heating Network
www.southwark.gov.uk
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
gas
coal
nuclear
oil
Fuel input
100 % 62% heat loss 4% losses34% of input energy delivered
power stationtransmission& distribution
gas
coal
nuclear
oil
Fuel input
100 % 62% heat loss 4% losses34% of input energy delivered
power stationtransmission& distribution
gas
bio-fuels
Fuel input
100 %20% losses
80% of input energy delivered
combined heat & power station
30% heat
50% electricity
gas
bio-fuels
Fuel input
100 %20% losses
80% of input energy delivered
combined heat & power station
30% heat
50% electricity
www.southwark.gov.uk
Background
Section 106 agreement tied to wastefacility site.
On-site renewable energy generation not feasible.
Agreement asked for community renewable energy scheme instead.
www.southwark.gov.uk
De-centralised Heat Generation Proposal
Use SELCHP to distribute heat to local estates
Projected emissions reduction of 7,716 tonnes of CO².
www.southwark.gov.uk
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
www.southwark.gov.uk
How it works
• 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
www.southwark.gov.uk
: Locations of estates benefiting
: Location of SELCHP
www.southwark.gov.uk
How it works
• 1,200 Southwark properties benefiting
• Scheme funded by Veolia
• Potential to supply commercial customers
www.southwark.gov.uk
Technical Details
• 5km of pipe laid beneath roads
• Minimal heat loss
• Leak detection system
www.southwark.gov.uk
Technical Details
• SELCHP pumps drive 110 °C water around the network
• Heat exchangers at each boiler house
www.southwark.gov.uk
Delivering the Project
www.southwark.gov.uk
Delivering the Project
www.southwark.gov.uk
Problem solving
• Challenge of finding route for pipes:
• Potential damage to trees
•London Overground timetable
• Relocation of certain plant rooms
www.southwark.gov.uk
Problem solving
•Need for contingency solutions
•Desire to keep existing boiler houses
•Disruption to residents being minimised
www.southwark.gov.uk
Timetable to completion
• June and July: Completion of pipe laying and boiler room modifications
• August and September: Testing and calibration
• October: Heat delivered
