Agricultural Solar Panels: A Guide to Benefits, Costs, & Installation

As energy costs continue to rise and sustainability becomes a growing priority, agricultural solar panels are an increasingly popular solution for UK farmers. With high energy demands for irrigation, lighting, and machinery, farms can benefit significantly from harnessing solar. Installing solar panels on farm buildings or land not only reduces electricity bills, but also enhances energy independence, by generating their own energy and supporting environmental goals.

In this guide, we will explore the financial and environmental advantages of agricultural solar panels, key installation considerations, costs and available incentives, and how Wow Energy can help farmers make the transition to solar.

Why Solar Panels for Farms?

Farming operations rely heavily on electrical power for equipment such as grain dryers, milking machines, and refrigeration units. Traditional energy sources are subject to fluctuating prices, making electricity costs unpredictable. Solar panels offer a long term, stable energy solution with solar power, allowing farms to become more self-sufficient while reducing their energy usage, energy bills and reliance on fossil fuels.

Solar panels convert sunlight into electricity, which can be used immediately or stored in batteries for later use. In the UK, even on cloudy days, solar panels for farms generate you’re own power efficiently, ensuring a reliable and sustainable energy source year-round.

Financial Benefits of Solar PV for Farmers

Investing in solar PV panels can significantly cut operating costs for farms. Key financial advantages include:

• Lower energy bills: By generating their own electricity with a solar PV system , farmers can benefit from energy savings and reduce or eliminate their reliance on expensive grid electricity.
• Protection from energy price fluctuations: Fixed clean energy generation costs from solar power help safeguard against rising electricity prices.
• Return on investment (ROI): With lower running costs and potential revenue from selling excess energy back to the national grid through the Smart Export Guarantee (SEG), a solar investment can pay for itself within a few years.
• Increased property value: Farms with a solar installation or renewable energy systems may see increased land and building values.

Environmental and Operational Benefits

Adopting solar energy is a step towards more sustainable farming practices. Benefits include:

• Reduced carbon footprint: Agricultural solar farms help lower greenhouse gas emissions, contributing to the UK’s net-zero goals.
• Sustainable land use: Agrivoltaic systems allow land to be used for both farming and solar energy production simultaneously.
• Minimal maintenance: Solar PV systems have no moving parts, require little upkeep, and have a lifespan of 25–30 years.

Installation Process and Maintenance

Installing solar panels for the agricultural sector is a straightforward process. The key steps include:

1. Site assessment: A professional survey determines the best location for solar panel installation—typically on barn roofs or unused land.
2. System design and planning: Engineers design a solar PV system tailored to the farm’s energy needs and site conditions.
3. Installation: Solar panels are securely mounted, connected to the electrical system, and tested for efficiency.
4. Ongoing monitoring and maintenance: Regular checks ensure optimal performance, with minimal upkeep required.

Wow Energy provides expert consultation, design, and solar PV installations to ensure that each solar PV system and battery storage system is customised for maximum efficiency and return on investment. We also install EV chargers for electric vehicles.

Costs and Incentives

The cost of an agricultural solar farm depends on factors such as system size, panel type, and installation complexity. While there is an initial investment, various funding options and incentives can help:

• Smart Export Guarantee (SEG): Earn payments for surplus energy exported back to the grid.
• Government grants and subsidies: Funding opportunities may be available to support renewable energy installations for farms.
• Financing options: Some farms may qualify for solar panel leasing or other financial schemes to spread the cost of solar panels for farms over time.

Choosing the right agricultural solar system for your farm

Every farm’s load profile is different, so start with your biggest electricity users and when they run.

• Dairy: Milking parlours, bulk tanks and wash cycles create sharp morning and evening peaks. A larger array with a modest battery can shave peaks and cover daytime plant and lighting.
• Arable and grain: Fans and driers are heavy seasonal loads. Size the system to cover yard and store base load through the year, then consider a temporary export tariff or a larger battery for harvest weeks.
• Poultry and pigs: Ventilation, heating and automated feeding run steadily. A high self consumption design with export limiting can work well even if the grid is constrained.
• Horticulture and glasshouses: Lighting, pumps and climate control benefit from smart controls that prioritise solar first, then battery, then grid.

Grid connection and compliance (what no one tells you)

Most farm solar installations will fall under the UK’s G98/G99 rules for connecting generation to the local network. Small systems up to 16A per phase (about 3.68kW on single phase, 11kW on three phase) are treated as microgeneration; larger systems require a formal G99 application, which checks protection settings and export levels with your DNO. Export limiting inverters can unlock capacity where the local network is tight. We handle the paperwork and commissioning sign off so there are no surprises with the DNO later.

For bigger dairies and sites with three phase supplies, we design to keep phase balance tight and power quality within limits, because motors, VSDs and chillers do not like poor voltage control.

Battery storage on working farms

Batteries are not a gimmick; they make sense when they reduce imports at your peak times or help you avoid running a generator for short outages. Good use cases include:

• Morning and evening milking peaks.
• Running augers and conveyors without starting a large drier line.
• Irrigation pumps on timers, shifting grid imports out of peak tariff periods.
• Backup for short power dips that would otherwise trip plant and spoil product.

Summary

Agricultural solar panels provide UK farmers with a practical solution to rising energy costs and sustainability challenges. With financial savings, environmental benefits, and minimal maintenance requirements, an agricultural solar system is an investment in the future of farming.

If you are considering a solar installation for your farm, Wow Energy can help you explore the best solutions tailored to your needs. Contact us today for a free consultation and discover how solar energy can transform your agricultural business.

FAQs

Will solar panels work in cloudy UK weather?

Yes, solar panels generate electricity from daylight rather than direct sunlight, making them effective at reducing your energy prices even in cloudy conditions.

How much space do I need for a solar system?

The space required depends on your energy needs. Roof-mounted solar PV systems, installed on farm buildings for example, typically require a few hundred square metres of roof space, while ground-mounted arrays can be installed on unused agricultural land.

Can I still farm the land if I install solar panels?

Yes, solar PV systems allow farm operations such as livestock grazing beneath elevated solar panels, maximising land use efficiency.

What is the lifespan of farm solar panels?

Most solar panels last 25–30 years with minimal maintenance, and continue producing clean energy efficiently beyond their warranty period.