£132k annual savings from 530kW rooftop solar
530kW rooftop solar installation at a UK resort, delivering £132,000 in annual electricity savings, 38% ROI, and £3.8m NPV over the asset's life.
A 530kW rooftop solar PV installation at a UK luxury resort, generating 574,000 kWh per year and covering approximately 21% of total site demand. Delivers £132,000 in annual electricity savings, 38% ROI, and £3.8m NPV across the 25-year asset life. Available on capex or a 7-year lease at £6,721.69 per month.
A UK resort with significant unused rooftop space and high daytime electricity demand installed a 530kW solar PV system to reduce its reliance on grid power during peak-cost hours.
The technical fit was strong. Resort operations peak during the daytime — kitchens, leisure facilities, air conditioning, lighting — which is exactly when rooftop solar generates. That alignment between generation and consumption means the system displaces grid power at the most expensive points of the day, rather than producing electricity that has to be exported back to the grid at lower rates.
The 530kW system generates 574,000 kWh per year, covering approximately 21% of total site demand. The remaining 79% is procured through the grid, where energy contract optimisation continues to play a role separately.
The resort had significant unused roof space that wasn't generating value. Across the estate, large flat and pitched roof areas sat idle while the business below paid grid rates for electricity drawn during the highest-cost hours of the day.
Grid electricity prices had risen sharply and shown no signs of stabilising. The resort needed an inflation-resistant energy source to protect its operating margins against further volatility.
The maintenance question was real. Most hospitality operators don't want their facilities team taking on responsibility for an unfamiliar asset class. Any solar solution had to be low-maintenance, long-life, and supported by installer partners with the expertise to handle issues without involving the resort's own staff.
We worked with our installer partner to scope, fund, and install a 530kW rooftop solar PV system across available roof space at the resort. The system was sized specifically to match daytime peak demand, what's called daytime peak shaving, so that the highest possible proportion of generation displaces grid electricity at the highest-cost hours.
Two commercial routes were available. The capex route required £415,000 with a 3-4 year payback. The lease route structured monthly payments of £6,721.69 over 84 months, with annual savings exceeding the finance cost from year one and leaving a strong surplus in annual cashflow.
The system is designed for a 25+ year asset life with minimal maintenance requirements. Performance monitoring and maintenance sit with the installer partner, not the resort's facilities team.
£132,000 annual reduction in electricity costs
574,000 kWh generated per year
21% of total site demand covered by solar
38% return on investment
£3.8m Net Present Value over the asset's life
3-4 year payback on £415,000 capex
£6,721.69 monthly lease over 84 months, with savings exceeding finance costs from year one
25+ year asset life with minimal maintenance
Rooftop solar delivers a strong, stable, inflation-resistant energy source for businesses with available roof space and significant daytime demand. With a 25+ year asset life and low maintenance requirements, the installation supports both the operational P&L and ESG reporting at the same time.
Annual energy savings
£485,000
25 Year NPV
