Solar Case Studies
Real systems, real numbers. Every case study below shows actual first-year generation, annual saving, and payback period — not estimates.
Bruntsfield, Edinburgh · 2025-10
In-Roof Solar in Conservation Area — Edinburgh
Victorian terraced home in conservation area needed planning consent and aesthetic-sensitive solar.
System
4 kWp
Saving/yr
£780/year
Payback
9.8 years
Shrewsbury, Shropshire · 2025-09
32 kW Farm Install with Tesla Powerwalls — Shropshire Dairy
A working dairy farm needed daytime solar for milking parlours and battery to time-shift evening loads when electricity rates spike.
System
32 kWp
Saving/yr
£8,400/year
Payback
6.8 years
Bury, Greater Manchester · 2025-08
4.4 kW + Tesla Powerwall 3 — Detached Home in Bury
Family of four wanted to cut their £2,400/year energy bill and have outage backup for the home office.
System
4.4 kWp
Saving/yr
£1,420/year
Payback
7.1 years
Manchester city centre · 2025-07
18 kW Rooftop Solar for City-Centre Café Group
A 4-site coffee shop group wanted solar at their flagship Manchester café for sustainability marketing and bill savings.
System
18 kWp
Saving/yr
£3,800/year
Payback
7.2 years
Salford Quays, M50 · 2025-05
120 kW Warehouse Solar with EV Charging Bundle
Logistics warehouse with 22 staff EV chargers needed solar to offset both building load and fleet charging.
System
120 kWp
Saving/yr
£28,400/year
Payback
5.9 years
Chester, Cheshire · 2025-04
50 kW Primary School with Salix Grant Funding
Primary school MAT wanted solar across 3 of 12 schools to demonstrate sustainability commitment, funded via Salix decarbonisation grant.
System
50 kWp
Saving/yr
£8,600/year
Payback
4.2 years (post-grant)
Wrexham, North Wales · 2025-03
Inverter Replacement on 2014 FiT-era System — Wrexham
A 2014 SunnyBoy inverter had been progressively under-performing since 2022. Three optimisers were also offline.
System
Existing 4 kWp
Saving/yr
£900 generation recovery
Payback
N/A (maintenance work)
Liverpool, Merseyside · 2025-02
Solar + EV Fleet Charging — Liverpool Trade Counter
Plumbers' merchant transitioning fleet to electric vans needed onsite charging matched to solar generation.
System
40 kWp + 8× 22 kW chargers
Saving/yr
£14,200/year
Payback
6.4 years
Where to go next
- For a modular battery that expands in 5kWh steps, EcoFlow PowerOcean.
- As a Tesla Certified Installer we fit Tesla Powerwall installation.
- Large roof on a farm or agricultural building? farm solar installation.
- Running an array across a commercial roof? commercial solar O&M.
Is your system worth upgrading? Find out free.
Tell us your postcode and what you have. A real engineer reviews it and comes back within one working day with an honest answer — including when the answer is "leave it alone".