Solar Panels for Farms UK: Costs, Benefits & Is It Worth It?
Solar panels for farms in the UK are one of the most effective ways to reduce energy costs, increase long-term profitability, and improve sustainability. With rising electricity prices and increasing pressure to decarbonise agriculture, more farmers are turning to solar PV systems to take control of their energy use.
This guide explains everything UK farmers need to know about installing solar panels — including costs, savings, system types, and whether it’s worth the investment. Whether you run a small family farm or a large agricultural business, you’ll learn how solar can reduce your bills, generate additional income, and future-proof your operations.
Quick answer
Solar panels for farms in the UK can significantly reduce electricity costs by generating free, renewable energy on-site. Most farms are ideal for solar due to large roof spaces, high daytime energy use, and available land. A typical farm solar system costs between £30,000 and £250,000 depending on size, with payback periods of 4–7 years. Farmers can also earn income through the Smart Export Guarantee (SEG) by selling excess electricity back to the grid. Solar is especially beneficial for dairy farms, poultry units, irrigation systems, and cold storage operations where energy demand is high and consistent.
What Are Solar Panels for Farms?
Solar panels for farms are photovoltaic (PV) systems installed on agricultural buildings or land to generate electricity. These systems convert sunlight into usable energy that can power equipment, lighting, refrigeration, irrigation, and more.
Common installation locations:
- Barn roofs
- Storage buildings
- Dairy units
- Poultry sheds
- Ground-mounted systems on unused land
Benefits of Solar for UK Farms
Installing solar panels offers both financial and operational advantages:
1. Lower Energy Bills
Farms often use large amounts of electricity during the day — perfect for solar generation. This reduces reliance on expensive grid energy.
2. Energy Independence
Solar allows farms to produce their own electricity, reducing exposure to price volatility.
3. Additional Income
Excess electricity can be sold through the Smart Export Guarantee (SEG).
4. Sustainability & Compliance
Solar helps reduce carbon emissions and supports environmental targets.
5. Increased Property Value
Energy-efficient farms are more attractive to buyers and investors.
Types of Farm Solar Systems
1. Rooftop Solar
Best for: Farms with large barn or shed roofs
- Uses existing structures
- Lower installation cost
- Minimal land impact
2. Ground-Mounted Solar
Best for: Farms with spare land
- Larger system sizes
- Higher energy generation
- Ideal for commercial-scale production
3. Solar + Battery Storage
Best for: Farms needing energy at night
- Stores excess electricity
- Reduces grid reliance
- Useful for 24/7 operations
| System Type | Best For | Key Benefit | Typical Farm Use Case |
|---|---|---|---|
| Rooftop Solar | Most farms | Lower upfront cost | Barns, storage buildings, machinery sheds |
| Ground-Mounted Solar | Large-scale farms | Maximum energy generation | Open land installations and unused fields |
| Solar + Battery Storage | High energy demand farms | Greater energy independence | Dairy farms, cold storage, irrigation systems |
How to Choose the Right System
Choosing the right solar system depends on several factors:
1. Energy Usage
- Analyse your electricity bills
- Identify peak usage times
- Farms with daytime usage benefit most
2. Roof Suitability
- South-facing roofs perform best
- Minimal shading improves efficiency
- Structural integrity must be assessed
3. Available Space
- Roof vs land availability
- Expansion potential
4. Budget & ROI
- Consider upfront cost vs long-term savings
- Explore financing or Power Purchase Agreements (PPAs)
5. Future Needs
- Electric machinery
- EV charging
- Expansion plans
Cost Guide: Solar Panels for Farms UK
Solar system costs vary depending on size, complexity, and installation type.
Important:
Every farm is different. A professional survey is required for accurate pricing.
| System Size | Estimated Cost | Annual Savings | Payback Period | Suitable For |
|---|---|---|---|---|
| 30–50 kW | £35,000–£60,000 | £6,000–£10,000 | 5–7 years | Small farms |
| 50–100 kW | £60,000–£110,000 | £10,000–£20,000 | 4–6 years | Medium farms |
| 100–250 kW | £110,000–£250,000+ | £20,000–£50,000+ | 4–6 years | Large farms / commercial |
Is Solar Worth It for Farms?
In most cases, yes — solar is one of the best investments a UK farm can make.
Why It Works So Well:
- High daytime energy usage aligns with solar generation
- Large installation areas reduce cost per kW
- Rising electricity prices increase savings
Typical ROI:
- Payback in 4–7 years
- System lifespan: 25+ years
- Long-term profit after payback
Key Buyer Questions Answered
Will solar panels save money?
Yes. Most farms reduce electricity bills by 50–80%.
Do solar panels work in winter?
Yes, but output is lower. Systems are designed to perform year-round in UK conditions.
Can I add batteries later?
Yes. Many systems are battery-ready for future upgrades.
What maintenance is required?
Minimal:
- Occasional cleaning
- Annual inspection
Can I sell excess energy?
Yes, through the Smart Export Guarantee (SEG).
Why the Installer Matters
The quality of installation directly affects:
- System efficiency
- Lifespan
- Safety
- Warranty validity
A poorly installed system can reduce performance and lead to costly repairs.
Choose an installer that:
- Is MCS certified
- Has agricultural experience
- Provides clear performance estimates
- Offers strong warranties
Farm Solar Questions Answered
Get clear answers to the most common questions about installing solar panels on farms in the UK, including costs, system sizes, and long-term benefits.
Need a farm solar quote?
Speak with our experts to design a solar system tailored to your farm’s energy needs and maximise long-term savings.
Get a Free QuoteConclusion:
Solar panels are a powerful investment for UK farms, offering lower energy bills, increased independence, and long-term profitability. With strong ROI, minimal maintenance, and growing environmental benefits, solar is becoming a standard part of modern farming.
If your farm has suitable roof space or land and high energy usage, solar is not just worth considering — it’s a strategic advantage.
Take the next step by getting a professional assessment and unlocking the full potential of solar for your farm.
Book a free solar and battery survey with Simple Green Energy: receive a tailored design and savings estimate based on your roof, smart-meter data, household use and future plans.
