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Retrofitting Harwellian Club for Sustainability: A Community-Led Journey

The Harwellian Club, a not-for-profit sports and social hub, has embarked on a sustainability journey to improve energy efficiency and reduce carbon footprint. Led by Chris Warwick and Debbie Greenfield, the club secured grants totaling £22.5k for a £39k project to retrofit the building. Initiatives include installing solar panels, heat pumps, and engaging in energy education. The club has already transitioned water heating to electric, with plans to eliminate fossil gas use entirely. Additional projects include battery storage, insulation upgrades, and real-time energy data displays within the club.

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Retrofitting Harwellian Club for Sustainability: A Community-Led Journey

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  1. Our Sustainability Journey …so far Retrofitting Community Buildings Chris Warwick (project lead) & Debbie Greenfield (Chair) The Harwellian Club

  2. A bit about us… Not-for-profit sports & social club becoming a social hub for the village Voluntary committee 1980s building with poor insulation, heating and hot water from old gas boilers High electrical demand - 24 hours a day due to chillers BUT: Large south facing slightly sloping roof! Before • • • •

  3. Motivation – save money and the planet • • Old utility costs (16.8p/kWh) £370/month (£4,400/year) New expense rising to £1,250/month (£14,800/year) Started with an Energy Survey • Spoke to the Low Carbon Hub – March 2022 • Free energy audit by the Environmental Information Exchange (EiE) at Oxford Brookes University • Survey funded by a grant made by the community energy co-operative Westmill Solar • Survey carried out by Michael Esvelt, July 2022 • Report received August 2022

  4. Then started applying for grants Fund Focus Max available Awarded National Lottery Community Fund £10k More available via other schemes £10k Community e.g.”improve the places and spaces that matter to communities” £5k £5k Westmill Solar Community Grant Community benefit projects plus climate change aims Must be within 25 miles of the Westmill site £5k £5k OCC Climate Action Fund Climate change awareness and education Low Carbon Hub £2.5k So, received total of £22.5k towards the total project costs of ~£39k. Remainder paid out of operating funds. Even a loan would have been justified based on the predicted savings.

  5. Implementation – phase 1 Solar Panels • 68 x 400W solar panels + 2x10 kWh batteries • Order placed September 2022 • 6-month lead-time • Installation March 2023

  6. Implementation – phase 2 Heat Pumps & Education/Engagement Heat Pumps: • Replacing out aging gas central heating with air-source heat pumps • Work underway this week, completion this month Education/Engagement: • Publicity via the Club’s newsletter and the Harwell News • Working with Sustainable Harwell • Referrals to Harwell Village Hall and Chilton Village Hall • Harwell School and Little Pippins Pre-school • Planning additional information points within the club to show real-time and historic energy data and savings • This meeting

  7. Harwellian Futures Plan - remove our fossil gas supply: • Already converted water heating from gas to instantaneous electric • Electric cooking • New heating/cooling system means gas will no longer be required Other things: • More batteries • Revisit other recommendations from the energy survey • More insulation! After

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