Real results
No estimates, no stock photos. These are our own installations, with the actual numbers our customers see on their bills.
70% cut in energy costs
Willerby, East Yorkshire
50kW solar PV system across two roofs plus battery storage for a working dairy farm — payback cut from 6 years to 4, saving £10,000 a year and avoiding 37 tonnes of CO2 annually.
Read the full case study →
EPC rating E → A
Newport, East Yorkshire
A heritage pub's full renewable retrofit — 36-panel mixed solar array, 20kWh SigenStor battery, in-roof solar tiles and an air source heat pump, cutting bills by 65% and lifting the EPC rating from E to A.
Read the full case study →
EPC rating F → B
Bridlington, East Yorkshire
A top-floor flat with one of the lowest EPC bands, transformed by an 8kW air source heat pump and a 4.05kW solar PV system — lifting its EPC rating from F to B and saving almost £300 a year.
Read the full case study →
EPC rating D → A
Hull, East Yorkshire
A detached bungalow with a large, unshaded roof, upgraded with a single 3.535kW solar array — lifting its EPC rating from D to the highest possible band, A, and cutting annual bills by 61.3%.
Read the full case study →
EPC rating D → A
Hull, East Yorkshire
A semi-detached bungalow already performing reasonably well, pushed further with a single 4.45kW solar array — lifting its EPC rating from D to the highest possible band, A, and cutting annual bills by 44.4%.
Read the full case study →
EPC rating F → B
Hull, East Yorkshire
A mid-terrace house reliant on old electric storage heaters, transformed by an Ideal air source heat pump and a 1.515kW solar PV system — lifting its EPC rating from F to B and replacing outdated, expensive electric heating with a modern, renewable-led setup.
Read the full case study →

78% bill reduction
Semi-Detached, Hull
Fully funded under ECO4. Sigenergy hybrid inverter + battery. January 2026.

£0 cost to customer
Victorian Terrace, York
Full Warm Homes grant covered the entire installation. COP 3.4. February 2026.

Oil → Heat Pump
Detached, Doncaster
Oil boiler replaced with a Logic Air heat pump + 10kWh overnight battery storage. October 2025.
Need a hand? I'm here to help. 👋
YEERS Assistant