Multi-Park Groups & Estates: Solar panels for caravan parks

Why multi-park groups get the best economics from solar across the portfolio

For a regional operator or group running several caravan and holiday parks, solar stops being a single-site decision and becomes a portfolio programme, and at that scale the economics improve markedly. A group can standardise the design once and roll it out across every park, spreading the capital and reducing the per-site cost through procurement scale. It can fund the whole programme through a group-level PPA or asset-finance framework, so each park draws on the same facility and deployment becomes effectively zero-capex. And it can run central monitoring and ESG reporting across every site, which turns a collection of separate installs into a single, board-level sustainability narrative that investors and leisure-property valuers increasingly expect to see. For groups whose energy cost is a board-mandated target, a coordinated solar roll-out is one of the cleanest ways to deliver both the cost reduction and the ESG reporting in one move.

The sector backdrop drives this hard. Site-wide energy has roughly doubled across the sector since 2021, and for a group that cost is multiplied across every park, so the savings compound. The same guest pressure for sustainability credentials that affects a single park applies at portfolio level too, where a consistent green story across every site strengthens the group brand and supports bookings everywhere at once.

Portfolio roll-outs are already happening at scale in the sector, with larger operators committing significant sums to solar across dozens of parks at once, and the logic is the same whatever the group's size: a roll-out standardises design, spreads capital, and unlocks group-level PPA or asset-finance frameworks that make zero-capex deployment possible. The other advantage that only emerges at group scale is data. With central monitoring across every site, the board gets a single dashboard showing generation, savings and avoided carbon across the whole portfolio, which is exactly the kind of auditable ESG evidence that investors and leisure-property valuers increasingly ask to see. On-site solar is now treated by the major property advisers as a value-add on a leisure asset rather than a complication, so a group programme also quietly improves the saleability and valuation of every park in it.

What a typical install looks like and how we size it

A multi-park group programme is sized across the portfolio rather than per site, typically running 500 kW to 5 MW in total, roughly 920 to 9,200 plus panels spread portfolio-wide, generating in the region of 460,000 to 4.6 million plus kWh a year and saving between 106 and over 1,058 tonnes of CO2 annually. The approach is to assess each park individually for roof condition, DNO capacity and planning, then standardise everything that can be standardised so the design, components and monitoring are consistent across the group. We pull half-hourly meter data and occupancy calendars for every site, because a coastal park and an inland one will have different curves, and we phase the roll-out so capital and installation effort are spread sensibly. Where individual sites are on constrained networks, we can deploy battery storage to self-consume while awaiting export capacity, keeping the programme moving rather than waiting on the slowest grid connection.

The seasonal-load logic that makes a single caravan park a strong solar case is amplified across a group, because the portfolio almost always spans different geographies and occupancy patterns. A coastal park in Wales and an inland park in the West Country will peak in slightly different ways, and modelling each one against its own occupancy calendar rather than a group average produces a much better-sized array per site. That is the difference between a roll-out that performs as promised and one that over-builds the quieter parks and under-builds the busy ones. We also use the group view to sequence the work intelligently, starting with the parks that have the strongest pool-led self-consumption and the clearest grid position, so the early sites prove the economics and build board confidence before the harder, constrained sites are tackled.

Costs, payback and tax relief

A group programme typically runs £350,000 to £4 million plus rolled out across multiple sites, with a blended payback near 6 years. Tax treatment is where group scale needs care. The 100% Annual Investment Allowance covers qualifying plant up to £1m per year, and most individual park installs sit within that, but a group deploying more than £1m of solar in a single tax year will exceed the AIA cap on the balance. Above the cap, solar as a special-rate asset qualifies for the 50% First Year Allowance, with the remaining 50% relieved through writing-down allowances at 6%. Phasing the roll-out across tax years can keep more of the spend inside the AIA cap, which we model alongside the engineering programme. The Smart Export Guarantee pays for off-season surplus across the portfolio. Our cost guide sets out the group economics, and the funding page covers the allowances in detail.

Funding routes in detail

Group scale unlocks the strongest funding structures in the sector. Beyond the 100% Annual Investment Allowance and the 50% First Year Allowance for spend above the £1m cap, a group-level power purchase agreement framework allows zero-capex deployment across every park from a single contract, while group asset finance spreads the cost over a typical term and is usually EBITDA-positive from year one. Group PPA contracts use recognised BRE and Solar Energy UK templates, which also means the offtake obligation transfers cleanly with a site if a park is ever sold. For guest and staff EV charging across the portfolio, the OZEV Workplace Charging Scheme funds up to 75% of chargepoint cost, capped at £500 per socket from April 2026, up to 40 sockets and a maximum of £20,000 per applicant, applied per park. Green Tourism accreditation, rolled out consistently across the group, becomes a brand-wide booking and pricing asset rather than a single-site badge. We set up the framework so each park draws on the same facility and the board sees one coherent funding picture.

Compliance and sector considerations

At group level, compliance is about doing the per-site work rigorously and then standardising. Each park is assessed individually for roof condition, DNO capacity and planning before being brought onto the standard design, because a coastal park in a National Park and an inland park on a strong network are genuinely different propositions. Every site's distribution must meet BS 7671 Section 708 for caravan and camping parks, with the usual pitch socket-outlet, RCD and IP requirements, and pool-equipped sites add the Section 702 pool zones. ESG disclosure is increasingly board-mandated for leisure assets tracked by the major property advisers, so the central monitoring we install is designed to produce the portfolio-wide reporting the board needs. The standard sector requirements apply at every site: permitted development for rooftop PV within size limits with extra scrutiny in protected settings, G99 applications above 17 kW per phase, three-yearly periodic inspection under IET Guidance Note 3, and the SPF1981 v3 rooftop fire safety standard as an increasingly common insurer requirement.

How we approach this kind of project

We treat a group programme as one project delivered across many sites. We pull half-hourly meter data and occupancy calendars for every park, assess each one individually for roof, grid and planning, then standardise the design, components and monitoring so the group gets consistency and procurement scale. We submit G99 applications early at every site and use battery storage to keep constrained sites self-consuming while export capacity is arranged, so the slowest connection does not hold up the whole roll-out. We phase the programme to manage capital and to optimise the Annual Investment Allowance across tax years, deliver fixed-price proposals per site under one framework, and provide a 10-year insurance-backed workmanship warranty throughout. Coastal parks get a salt-resistant specification, central monitoring feeds the board ESG reporting, and disruptive work at each park is scheduled for its quiet season.

Standardisation does not mean a one-size-fits-all design, and that distinction matters at group scale. What we standardise is the parts that should be the same everywhere: the component specification, the monitoring platform, the warranty terms, the reporting format and the procurement. What stays bespoke is everything driven by the individual park, the array size against that site's seasonal load, the roof condition and structural capacity, the local planning context, and the DNO connection. Our certifications underpin the whole programme: MCS commercial certification for SEG eligibility, NICEIC or NAPIT for electrical work, RECC and TrustMark for consumer protection, OZEV approval for the EV charging, and ISO 9001 and 14001 for the group procurement and environmental management that a board-level programme expects. That combination is what lets a group hand the whole roll-out to a single accountable partner rather than coordinating separate contractors site by site.

An illustrative example

As an illustrative composite based on typical UK group roll-outs, and not a real named client: a regional operator with eight caravan and lodge parks across Wales and the West Country, board-mandated to cut energy cost and report ESG progress to investors, faced mixed roof conditions and three sites on constrained coastal DNO networks. A 1.4 MW programme was delivered, averaging around 175 kW per park and phased over eighteen months, generating in the region of 1.27 million kWh a year for a portfolio-wide saving near £310,000 and a blended payback close to 6 years. It was funded through a group asset-finance facility and was EBITDA-positive from year one, with a standardised design and a central monitoring dashboard for board ESG reporting. The two constrained sites used battery storage to self-consume while awaiting G99 export capacity, and OZEV-funded guest EV charging was added at four flagship parks. The standardised design and the central dashboard meant the board could report consistent generation, savings and avoided-carbon figures across all eight sites from a single source, and the on-site solar was treated as a value-add by the group's property advisers rather than a complication. The figures are illustrative and depend on the portfolio, grid positions and finance terms available.

For the per-site detail behind a group roll-out, see solar for caravan parks and solar for park leisure buildings. When you are ready, read the cost guide and funding routes, then request a free feasibility across your portfolio, or read the holiday park solar FAQs first.