Coventry's motor industry began in 1896, when the newly formed Daimler Motor Company bought a disused cotton mill in the city; its first car left the works in January 1897. The city still earns much of its living from engineering (vehicle design and electrification, aerospace, battery development and the component makers behind them), and a factory that machines, presses, tests and assembles through the working day draws power in exactly the hours its roof can generate it. Midland Solar has installed solar since 2009 from our Tamworth base. This page covers the energy case, supply-chain reporting, 2026 costs, tax and the grid connection for Coventry manufacturers and their suppliers.
Coventry's Engineering Base and Its Daytime Power Demand
The car industry never left. Jaguar Land Rover's Whitley site on Abbey Road is the registered office of Jaguar Land Rover Limited and a long-standing engineering and design centre. Ansty Park, beside junction 2 of the M6, brings together LEVC's electric-taxi headquarters and plant, the Manufacturing Technology Centre and Parker Meggitt's aerospace site; LEVC scheduled the end of TX assembly for September 2026 while Ansty prepares for a new-generation cab due in the second half of 2027. Prologis Park Ryton stands on the site of the former Peugeot car plant, closed in December 2006, and houses JLR's Special Vehicle Operations and Classic divisions. On Rowley Road at Baginton, next to Coventry Airport, the UK Battery Industrialisation Centre, the national facility for scaling up battery manufacturing, has operated since July 2021; Companies House lists Coventry City Council as its majority owner.
Around them sit the machine shops, toolmakers, fabricators, test houses and logistics operators that supply them, plus office campuses such as Westwood Business Park beside the University of Warwick. Most share the same demand shape. CNC machining, compressed air, extraction, heat treatment, test chambers and battery cycling rigs run through daylight hours, so a well-sized array's output is used on site rather than exported for a fraction of its value. DESNZ's provisional figures put the average electricity price paid by manufacturers at 17.47p/kWh in the first quarter of 2026, before Climate Change Levy. At that price every 10,000kWh you generate and use yourself is worth up to about £1,750, and somewhat less where fixed standing or capacity charges, which solar does not touch, make up part of your bill.
On a shallow factory roof, the EU's PVGIS model gives Coventry roughly 810 to 890kWh per kWp a year, depending on whether the panels face south or east–west. Your shift pattern decides how much of that you keep: a single-shift, five-day plant uses its weekday output but little at weekends, while a three-shift or seven-day operation can absorb nearly all of it. Where output would otherwise spill to the grid, commercial battery storage or a smaller array may suit better. We size every design to your half-hourly data, not to the area of the roof.
Supply-Chain Pressure: Why Scope 2 Is Now a Customer Question
Coventry's suppliers answer to vehicle makers with published climate targets. In September 2022 JLR asked its Tier 1 suppliers, a network it put at more than 5,000 companies worldwide, to set a decarbonisation pathway, report transparently and demonstrate progress while working with their own supply chains. JLR's science-based targets aim to cut its operational emissions by 46% and average per-vehicle value-chain emissions by 54% by 2030, on the way to carbon net zero across supply chain, products and operations by 2039.
Under the GHG Protocol, the emissions from a supplier's purchased electricity form part of the cradle-to-gate footprint its customer reports as Scope 3 purchased goods and services. The power your presses and machining centres buy ends up in your customer's inventory, which is how carbon questionnaires reach Tier 2 firms as well as Tier 1.
Larger businesses also have a legal duty. Streamlined Energy and Carbon Reporting (SECR) covers quoted companies and larger unquoted ones: an unquoted company must report unless it stays within at least two of three limits, namely turnover of £36 million, a balance sheet total of £18 million and 250 employees, with a two-year rule before its status changes. Those limits sit in the SECR provisions themselves, so they did not rise with the April 2025 uplift to the general Companies Act size thresholds. The directors' report must state the emissions "resulting from the purchase of electricity by the company for its own use" and describe any principal energy-efficiency measures taken that year.
Onsite solar gives both audiences a clean, metered number, because electricity you generate and consume yourself is not purchased. A 150kWp array on a shallow Coventry roof would generate roughly 122,000 to 134,000kWh a year; used on site, that avoids about 16 to 17.5 tonnes of CO2e a year at the government's 2026 UK electricity factor of 0.131kg per kWh. That factor is 26% lower than in 2025, partly because the method now uses more recent grid data, so the kilowatt-hours you stop buying are the more durable figure to report.
What a Factory-Roof System Costs in 2026
Per-kWp prices fall as systems grow, because design, the G99 application, access and commissioning cost much the same at 50kWp as at 300kWp. These indicative 2026 ranges assume a sound modern roof with straightforward access, and exclude VAT and the factory-specific items listed below.
| Array size | Typical Coventry building | Indicative installed cost (ex VAT) | Per kWp | Modelled annual output* |
|---|---|---|---|---|
| 50kWp | Machine shop or trade unit | £45,000–£57,500 | £900–£1,150 | 41,000–45,000kWh |
| 150kWp | Mid-sized production unit | £120,000–£150,000 | £800–£1,000 | 122,000–134,000kWh |
| 300kWp | Large factory or distribution building | £210,000–£270,000 | £700–£900 | 244,000–268,000kWh |
*PVGIS 5.3 long-term averages for Coventry at a 10° tilt, east–west to south-facing, unshaded, with 14% system losses.
Factory roofs add costs that a desktop quote can miss:
- Structural capacity. Panels and rails add dead load to purlins that may already carry ducting or extraction, and older portal frames can need an engineer's calculation. Ballasted flat roof solar avoids penetrations but adds weight.
- Fragile rooflights and sheeting. HSE guidance is to treat every roof as fragile until a competent person confirms otherwise, and falls through fragile surfaces, particularly fibre-cement roofs and rooflights, account for 22% of fatal falls from height in construction. Budget for rooflight covers or netting, walkways and edge protection.
- Asbestos. HSE's rule is to assume asbestos is present in any building built or refurbished before 2000, so older cement sheeting is checked before anyone drills into it.
- Live-site working. Exclusion zones, lifting windows and permits to work are planned around production, which can lengthen the programme.
Finance options are available, subject to status. For a firm price against your own roof, book a free site survey.
Tax Treatment: Allowances, Business Rates and VAT
HMRC classes solar panels as special-rate assets, which sets the route. The Annual Investment Allowance gives 100% first-year relief on up to £1 million of qualifying plant and machinery a year, special-rate spend included, so most factory arrays can be written off in the year they go in. Full expensing does not apply to solar, because it covers main-rate plant only. HMRC does let you allocate the AIA however you choose, though, so a company also buying machine tools this year can put those main-rate assets through full expensing and keep the AIA for the special-rate solar spend. Above the AIA, companies can claim the 50% first-year allowance on special-rate expenditure, with the balance written down in the special rate pool at 6% a year.
One local exception is worth checking. Coventry City Council lists four sites in the Coventry & Warwick Gigapark Investment Zone, namely Greenpower Park, SEGRO Park Coventry, Whitley South and Whitley East, with 183 hectares carrying tax incentives; the Gigapark is a designated Investment Zone special tax site. Companies investing in new plant and machinery for use primarily within a designated special tax site can claim a 100% enhanced capital allowance on qualifying spend incurred up to 30 September 2034. Conditions apply, so check your premises against the official tax-site map with your accountant.
In England, plant and machinery used for onsite renewable generation and storage has been excluded from rateable value since 1 April 2022, and will be until 31 March 2035, where the power is used on the premises. The Rating Manual adds that above 50kW a value is calculated for the parts that stay rateable, such as supports, brackets and settings, so mention the array to your rating adviser.
Commercial installations carry standard-rate VAT at 20%; the energy-saving materials relief covers residential accommodation and buildings used solely for a relevant charitable purpose, not factories. A VAT-registered business normally recovers it as input tax. We are installers rather than tax advisers, so take your accountant's view before committing.
Grid Connection: G99 and Coventry's Network
Coventry's distribution network operator is National Grid Electricity Distribution (NGED), but the city sits in NGED's East Midlands licence area, not the West Midlands area that serves Birmingham. NGED's long-term development statement groups Coventry and Warwick with the East Midlands conurbation, so that is the network data describing the substations your site connects to.
G98 covers small type-tested systems up to 16A per phase, which is 3.68kW on a single phase; anything larger goes through G99, and for a commercial-scale array that means applying for, and receiving, the DNO's connection offer before the system goes live. Every factory installation is effectively a G99 project, and the offer rather than the roof work usually sets the timetable, so we apply before hardware is ordered.
Where the network cannot take your export, reinforcement is not the only answer. A customer export limitation scheme, built to the Energy Networks Association's G100 recommendation, measures the current at the connection point and holds net export to an agreed figure; NGED notes that customers facing costly or slow reinforcement may choose this instead. A zero-export setting suits a factory that would use nearly all of its generation anyway. Once commissioned, the settings can only be changed with the DNO's written agreement.
Why a Tamworth Installer for a Coventry Site
Our base is on the B5K Business Park in Tamworth (B77 4GR), about 24 miles by road from Coventry city centre: roughly 35 to 45 minutes via the M42 and A45, or down the A5 and A444 through Nuneaton, depending on traffic. Ansty Park and Whitley are both about 26 miles away.
On timing, we would rather be straight with you. We agree a survey date on your first call, and the visit is the quick part; a firm design then depends on your half-hourly consumption data and on NGED's response to the G99 application, neither of which we control. If you are working to a date, such as a planned shutdown, a financial year-end or a customer audit, tell us at the start and we will plan back from it.
We are MCS certified, NAPIT registered and members of HIES, and every installation carries our 2-year workmanship guarantee alongside the manufacturers' warranties. See commercial solar for the full service, commercial solar in Warwickshire for sites beyond the city boundary, or solar panels in Coventry for a home. When you are ready, book a free commercial survey or contact us.