Solar Panel Installation Case Studies

Discover how this Woodborough homeowner achieved a 97% reduction in electricity bills with a stunning in-roof solar installation, battery storage, and EV charging—all seamlessly integrated during a roof replacement.

A homeowner in Sherwood, Nottingham, approached Spectrum Energy Systems with a clear goal: to become more self-sufficient and reduce his reliance on the grid. With monthly electricity bills of £125 and growing concerns about rising energy costs, he wanted a solar solution that would deliver genuine energy independence and meaningful savings.

See how this Papplewick homeowner cut their electricity bill by 84%—from £250 per month to £40. With an air source heat pump and two EVs, the household uses over 12,000 kWh a year, so they needed a high-capacity solar setup. Our 12kW solar PV system paired with 20kWh battery storage and whole-house backup now supplies around 73% of their annual electricity needs, with an estimated 7-year payback (based on their usage and tariff).

Johns of Nottingham (Mapperley) cut their electricity bill from £18,760/yr to £12,000/yr — a 36% reduction. To offset prices and EV charging demand, we installed a 35kW east/west solar array (500W JA all-black panels), 3-phase GivEnergy inverter and 20kWh battery. Completed in 5 days on a 3-storey flat roof using an 18m telehandler. Generates ~23,000 kWh/yr, covering ~35%, with ~4.5-year payback. “Highly professional and efficient.”

Project Overview Seeking greater energy self-sufficiency and lower electricity bills, the client approached Spectrum Energy Systems for a Solar PV

Project Overview Spectrum Energy Systems is proud to present this successful solar PV installation for a premium residential property in