Commercial Solar — Designed Around Your Site, Not a Brochure

For commercial clients that means a bespoke consultancy approach — not off-the-shelf systems quoted against a price-per-kWp spreadsheet. Every project starts with half-hourly demand data, a CAA-certified drone survey, and a sober conversation about what your site actually needs — and what it doesn't.

Who commercial solar makes sense for

The KMM consultancy works across UK commercial sectors. We're sector-agnostic on technology choice — what matters is the demand curve, the site geometry, and the funding context, not the vertical. Recent KMM commercial work includes:

• Healthcare — GP practices, dental surgeries, private clinics. Daytime electrical load is high (lighting, sterilisers, IT, HVAC), and many practices fund through Salix-equivalent finance. KMM has installed a notable GP practice rooftop + Aelio battery project (see Battery Storage page) showing how clinical sites benefit from time-of-use tariff strategy.
• Breweries, distilleries and food & drink manufacturers. Mash tuns, conditioning tanks, refrigeration and packing lines run continuously through daylight hours — strong self-consumption ratios. We've worked with independent UK breweries pairing roof PV with battery for evening conditioning load.
• Large agricultural sites. Multi-shed roof areas, ground-mount alongside grazing, irrigation pumps, grain dryers, dairy parlours. KMM commonly works on farm projects above 200 kWp combining PV with private wire arrangements between buildings.
• Care homes & multi-site healthcare groups. Continuous load profile (heating, hot water, lifts, lighting), often funded through public-sector-equivalent routes. KMM has scoped multi-site rollouts across regional care groups.
• Industrial and manufacturing SMEs. Roof PV plus heat-recovery / process-load shifting opportunities. Often qualify for Annual Investment Allowance (AIA) tax relief on the solar spend.

What's actually in a KMM commercial proposal

A KMM commercial proposal lays out what every line of capex covers. Specifically:

• Bespoke system design documented in full — panels, inverter, battery and programme — after your Fully Funded Electrical & Structural Survey.
• Site-specific engineering — structural capacity sign-off, DNO G99 application route, export configuration, cable runs and DC string design.
• Modelled generation from your actual roof geometry — not a regional average — and the assumptions that drive it (PVGIS irradiance dataset, soiling factor, shading model).
• Tariff and self-consumption modelling against your HH data, with sensitivity analysis on grid import and export prices.
• Funding routes — capex vs PPA vs asset finance, Annual Investment Allowance (AIA) relief, and grant or Salix eligibility checks where applicable.
• Operational considerations — realistic maintenance expectations (inspection regime, inverter replacement provision, cleaning frequency), monitoring access, fault response.

Nationwide DNO and grid consultancy

KMM operates nationally on grid connection matters even where the install crew is regional. Every commercial install above 16A per phase requires a G99 application to the local DNO. Export limitation via G100 is increasingly common as DNO capacity tightens on UK feeders. KMM handles every G99 submission as part of the project — including the design pack, single-line diagram, and export-limit certification — across NGED (formerly Western Power Distribution), UK Power Networks, SP Energy Networks and SSEN territories.

Where reinforcement contributions are likely, KMM models them into the funding case before you sign. Where private wire arrangements (between adjacent buildings on a single landowner's site) avoid DNO reinforcement entirely, we design for that instead. Cluster and private-wire arrangements are an under-used tool on agricultural and multi-tenant industrial sites — KMM treats them as a first-line option, not a workaround.

Honest finance modelling

KMM is not a PPA developer. Our default position is capex purchase with Annual Investment Allowance (AIA) relief modelled — typically the strongest TCO outcome for UK corporation tax payers. We model PPA, asset finance, lease and grant-backed capex side-by-side and let the maths drive the recommendation. Where PPA genuinely wins (rare, but happens — e.g. for non-tax-paying charities), we'll say so. Where capex with asset finance wins, we'll say that too. We don't have a commission incentive on either route.