Solar PV System for Wedding Venue
project snapshot
Luxury Bedfordshire Wedding Venue
| System size | 190kWp peak / 150kW max active AC power |
| Payback period | 5.5 years |
| Internal rate of return | 18.45% |
| Return on investment | 221.66% |
| First year savings | £37,752 |
| Lifetime bill savings | £691,642 |
| Annual carbon reduction | 37 tonnes CO2 |
| Lifetime carbon reduction | 925 tonnes CO2 |
the client
Luxury wedding venue
The business is a luxury wedding venue and working farm in Bedfordshire situated within the boundaries of a national scheduled monument. The venue offers a full catering operation, function rooms, bar areas, bridal suites, a traditional barn for ceremonies, and on-site accommodation.
the challenge
Rising energy costs
With no mains gas supply, the business was heating the venue and producing hot water entirely through oil-fired boilers, at a cost of around £74,000 per year in combined energy spend. Annual electricity consumption was approximately 280MWh.
Rising energy costs, combined with a genuine commitment to reducing the site's carbon footprint, led the business to explore solar PV, but the location created significant additional complexity. The site's status as a scheduled monument and designated conservation area meant any development would face scrutiny from heritage bodies.
route to a solution
Managing the planning process
Practical Energy Solutions (PES) modelled the solar PV system to maximise generation within the constraints set by the District Network Operator (DNO). The rural grid infrastructure limited maximum system output to 150kW – beyond which a new substation would have been required, adding substantial cost.
The original proposed location for the solar arrays was objected to by the planning department on heritage grounds, to protect the significance of the listed manor house and medieval moat. As a result, the arrays were relocated approximately 0.5km eastward, to an area of low-grade arable land set aside from the main farm.
Following archaeologist intervention, the mounting method was also changed from ground screws to concrete block fixings to protect any historical assets that might be present beneath the site.
PES managed the entire planning process on behalf of the client, including:
- All planning application submissions, plans, and documentation
- Extensive heritage statements and land searches
- Liaison with local planning officers, Historic England, and the Secretary of State
- Engagement and management of ecologists to produce statutory Biodiversity Net Gain reports and a Preliminary Ecological Appraisal
the system
Final installation
The final installation comprised:
- 320 x AIKO bi-facial 600W panels
- 4 x Solis high-efficiency inverters
- Approximately 20km of DC cabling, trench-laid at over 1 metre depth
- A bespoke secure inverter and energy management housing, constructed and installed on site by our sister company, Northern Renewable Energy Services
All installation work was carefully timed to cause minimum disruption to the business. The final grid connection required only a 4-hour site power-down.
the results
Significant savings
The system locks in a levelised energy cost of 7.6p per kWh for 25+ years, protecting the business against future energy price rises.
| Pre-solar | Post-solar | Impact | |
|---|---|---|---|
| Annual energy cost | £74,000 | £37,000 | £37,000 saved annually |
| Grid reliance | 100% | 65% | 35% reduction |
| Cost per kWh (all consumption) | 27p | 13.2p | 13.8p saving per kWh |
| Carbon emissions (electricity) | 56 tonnes | 19 tonnes | 66% reduction in Scope 2 emissions |
| Carbon emissions (oil) | 46.9 tonnes | 0 tonnes | 100% reduction in Scope 1 emissions |
site emissions
ECG and wider benefits
The reduction in site emissions supports the conservation of the historical assets on the estate – a consideration that resonated strongly with the client and with the heritage bodies involved in the planning process. The installation also represents a meaningful step in the business's ESG journey, and one it can communicate directly to wedding venue clients.
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Thinking about solar for your business?
This project demonstrates what's possible even in complex, constrained environments. If you're considering solar PV – whether on a straightforward commercial roof or a more challenging site – we're happy to talk through what might work for you.