50 kW Install on a 30-Room Devon Boutique Hotel
- System size
- 50 kW
- Annual saving
- £11,200
- Payback
- 5 years
- Location
- Devon
Modelled worked example — the figures below are built from sourced 2026 UK cost and generation benchmarks for a property of this profile, not a claimed client project.
The hotel
A 30-room family-owned boutique hotel in South Devon with a substantial wedding-business segment (45 weddings/year), full F&B, and in-house laundry. Non-listed Victorian conversion with later extensions. Annual electricity spend £63,000.
The brief
Reduce operating cost, deploy a lobby sustainability display for wedding-business marketing, and complete the install in time for the spring/summer wedding season opening.
The modelled system
50 kW rooftop array across the main building roof and a small subsidiary roof on the function-suite extension. Tier-1 LONGi 540W panels, Fronius inverter, lobby live-generation display. Capital purchase with AIA tax shield.
The numbers at year one
- Annual generation: 47,000 kWh
- Self-consumption: 89%
- Year-1 saving: £11,200
- Capex: £55,000 gross; £41,250 after AIA
- Effective payback: 3.7 years
- Wedding-business close rate up 11% in 6 months following lobby display deployment