Can solar and EV chargers help your farm diversify?

Start with your farm's electricity demand and visitor parking, then assess solar and charging separately. Eligible workplace charging can receive up to £500 per socket [S1], but visitor-only bays need a separate eligibility check. Compare annual host income under fully funded terms with ROI and payback under part funded and self funded terms. Checked October 2026.

Last checked 17 October 2026

Is solar and EV charging a viable farm diversification project?

Start with separate income streams. Solar can offset electricity your farm would otherwise buy. Charging can generate sales to visitors or provide energy for your vehicles. Neither establishes demand for the other.

List your farm shop, café, accommodation and other visitor uses. Record parking duration and charging enquiries. Then collect electricity interval data showing refrigeration, irrigation and other loads. Government connection guidance recommends considering charging needs and existing demand together [S2].

A visitor car park and a working yard need different layouts. Keep charging away from livestock movements, deliveries and machinery routes in your survey brief. Review rural charging alongside the farms and rural businesses sector.

Should you lease space to a developer or pay for equipment?

Compare these funding models for the same charging layout. The arrangements below describe the comparison to request, not available offers or standard contract terms.

Ask for the lease length, access hours, electricity payer, tariff control, maintenance and end-of-term removal. Include redevelopment, assignment, insolvency and reinstatement in your solicitor’s review. Put liability, insurance and business-rates responsibility in the comparison rather than assuming funding removes them.

Use the host-agreement guide to prepare questions. Keep any solar roof lease separate from the charging contract so you can see the obligations of each.

What could your site earn, and how many years until it pays back?

This is an illustration, not a quote. All commercial inputs below are assumptions, not market benchmarks. Kilowatts (kW) measure power; kilowatt-hours (kWh) measure energy. Sessions are across the whole installation.

Annual energy = sessions × 20 × 365: 7,300 / 21,900 / 36,500 kWh. Net operating income = energy × (£0.50 − £0.25) − £600. Mid use gives 21,900 × £0.25 − £600 = £4,875. The assumed energy cost includes charging losses.

Fully funded host income = delivered energy × £0.50 × 10%. Simple return on investment (ROI) = yearly host net income ÷ host capital × 100. Payback = host capital ÷ yearly host net income. Capital ranges produce the return ranges. Part funded halves both investment and net income in this example, so its ROI matches self funded.

No host capital payback applies to fully funded. These calculations exclude financing, tax, replacement reserves, grid upgrades, payment fees beyond the assumed operating budget and the value of lost parking. Request a revised model including those items. Low use may fail to recover capital within the equipment’s service life.

Can solar improve the numbers without counting the same benefit twice?

Model solar separately before combining it with charging. As an assumed illustration, take an array of 40 kW peak capacity producing 36,000 kWh yearly. Assume 75% self-use, £0.25/kWh avoided import, £0.05/kWh export value, £600 yearly maintenance and £32,000–£40,000 capital. These are modelling inputs, not a yield forecast or tariff.

Annual net benefit = 27,000 × £0.25 + 9,000 × £0.05 − £600 = £6,600. Simple ROI is 16.5–20.6%; payback is 4.8–6.1 years. That benefit mixes avoided spending and export receipts. It is not all customer income.

Keep this solar example outside the charging table. If solar supplies a charging session, replace that session’s energy cost in a combined model. Do not add the same avoided import again. Ask for interval modelling before adding batteries; see solar, battery and charging together.

What grid, land and construction access checks come first?

Ask your distribution network operator (DNO), the local electricity network company, about the charging load [S2]. Have the installer assess solar export and storage as part of the same proposal. Do not infer available capacity from a line crossing your field.

The solar roadmap addresses rooftops, ground-mounted projects and agricultural land considerations [S3]. Ask the council to confirm the route for your nation and proposal. Include construction access, drainage, screening, ecology and any heritage constraints. Do not treat a charging permission as consent for the solar array.

Which grants and tax dates belong in your farm budget?

The Workplace Charging Scheme covers up to 75% of eligible costs, capped at £500 per socket and 40 sockets across an applicant’s sites. It runs until 31 March 2027; apply before installation [S1]. Confirm visitor-bay eligibility before deducting anything. No grant is included in the illustration.

HMRC describes qualifying chargepoint first-year relief through 31 March 2027 for Corporation Tax and 5 April 2027 for Income Tax [S4]. Check with your accountant; the relief does not establish solar eligibility.

What should you do next?

Collect site plans, electricity data and visitor evidence, then get matched with an installer that covers your area.

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