How do solar panels work? +
Solar panels work by converting sunlight into electricity using photovoltaic (PV) cells. These cells absorb solar energy and generate an electrical current through an internal electric field. Most commercial solar installations use PV systems, while very large industrial sites may use Concentrated Solar Power (CSP), which focuses sunlight onto receivers to produce heat and then electricity. PV technology is ideal for factories, warehouses, and industrial buildings because it provides scalable, low-maintenance power generation.
How long will it take to install solar panels at my manufacturing business? +
The installation time depends on the system size and DNO approval. The Distribution Network Operator (DNO) application and approval process can take up to 12 weeks. After approval, planning, risk assessments, and scheduling take a few more weeks. The physical installation typically takes between 1 to 4 weeks depending on roof size, structure, and access. Large factories or multi-roof systems may take longer, but all work is carefully planned to minimise disruption to production.
Can my manufacturing business operate while the solar panels are being installed? +
Yes. In almost all cases, your operations can continue as normal during installation. Commercial installers have extensive experience working in live manufacturing environments. They will coordinate access and safety planning around your shift patterns and production schedules. Any potentially noisy or disruptive work can be carried out during planned downtime, evenings, or weekends to avoid any interruption to your business.
What is the lifespan of a commercial Solar PV system? +
Commercial solar systems are built to last. The average lifespan of a solar PV system is between 25–30 years, but with good maintenance they can last up to 40 years. Inverters typically need replacement after 10–15 years, and annual servicing and panel cleaning help maintain performance. Modern Tier-1 panels come with 25-year product and performance warranties, ensuring consistent energy output and reliability over decades.
Can you fit solar panels to a leased or rented commercial property? +
Yes, solar PV can be installed on leased or rented manufacturing or industrial properties with the landlord’s permission. Most landlords support solar projects because they add asset value and reduce tenants’ operational costs. It is always best to obtain written consent before installation. Our partners can assist with documentation and lease amendment wording to make the process straightforward.
How much do commercial solar panels cost? +
Costs vary depending on the roof type, system size, equipment, and electrical design. For reference, commercial solar installation typically ranges from £700 to £1,000 per kWp installed. A 50kW system might cost around £40,000, a 100kW system £70,000–£100,000, and a 250kW system £200,000–£250,000. These figures include panels, inverters, mounting, scaffolding, and G99 DNO application fees. While the upfront cost may seem high, solar panels can reduce energy bills by up to 60%, delivering strong ROI and long-term resilience against rising grid prices.
What is the payback period for a commercial solar system? +
Most manufacturing and industrial solar PV systems pay back within 4 to 7 years, depending on energy usage, system size, and funding model. Businesses with high daytime electricity demand can see even faster returns. Once the system is paid off, the ongoing electricity produced is effectively free, providing decades of reduced energy costs and long-term carbon savings.
Do I need planning permission for commercial solar panels? +
In most cases, rooftop commercial solar installations qualify as “permitted development” and do not require full planning permission. However, certain conditions apply for listed buildings, conservation areas, or installations above a specific roof height. Ground-mounted systems or large-scale industrial arrays may require formal planning consent. Our installer partners can assess your site and handle any required planning or DNO applications on your behalf.
What finance options are available for commercial solar? +
Commercial clients can choose between different funding options including outright purchase (CAPEX), operational leases, or Power Purchase Agreements (PPAs). Under a PPA, a third party funds and owns the system, and you buy the electricity it generates at a lower fixed rate. This allows businesses to benefit from solar energy without capital outlay. Our partners will present a clear comparison of finance routes, ROI, and cash-flow impacts.
Is my factory roof suitable for solar panels? +
Most manufacturing and warehouse roofs are excellent candidates for solar PV systems, especially flat or gently pitched roofs with good sun exposure. Installers conduct a full structural and electrical survey to check load-bearing capacity, roof material, and electrical integration. Even older roofs can often accommodate solar with the right mounting solutions. If roof space is limited, ground-mounted or carport solar systems can also be considered.
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