With energy prices rising and the UK’s focus on sustainability growing, more homeowners are considering solar panels and battery storage. But with so many installers and options, comparing quotes can feel overwhelming. This comprehensive guide will help you confidently evaluate solar PV and battery quotes, ensuring you make a smart, cost-effective decision for your home.
Why Compare Solar PV and Battery Quotes?
- Maximise Your Investment: Comparing multiple quotes helps you find the best value and avoid overpaying.
- Understand What You’re Getting: Not all systems or installers are equal—details matter.
- Spot Red Flags: Identifying vague or misleading quotes protects you from poor service or hidden costs.
What Should a Good Solar PV & Battery Quote Include?
System Size & Output
- System Size (kW): The quote should specify the system’s size, typically 3–5kW for a UK home.
- Estimated Output: Look for annual energy production estimates (kWh/year) based on your roof’s orientation and shading.
Equipment Details
- Panel Type & Efficiency: Check for details on panel efficiency, expected lifespan, and warranty.
- Inverter & Battery Specs: Ensure the quote lists inverter type and battery capacity (kWh), along with cycle life and warranty.
- No Brand Names Needed: Focus on technical specs, not just brand reputation.
Installation & Labour
- Full Breakdown: The quote should cover all installation costs, including scaffolding, electrical work, and extras like monitoring systems or bird protection.
- Timeline: Ask for an estimated installation schedule.
Accreditation & Compliance
- Certified Installers: Only consider quotes from installers accredited by recognised UK industry bodies (such as MCS or RECC).
- Eligibility for Incentives: Accreditation ensures you qualify for any available government incentives or export tariffs.
Warranties & Aftercare
- Product Warranties: Look for clear information on panel, inverter, and battery warranties (typically 5–30 years).
- Workmanship Warranty: Installation warranties usually range from 2–10 years.
- Aftercare Support: Check if ongoing maintenance or monitoring is included.
How to Compare Prices
| System Size | Typical Cost (Panels + Battery) | Estimated Annual Savings | Payback Period |
|---|---|---|---|
| 4kW + 5kWh | £9,000–£12,000 | £500–£750 | 5–10 years |
Note: Costs and savings vary by location, energy usage, and installation complexity.
Red Flags to Watch For
- Unrealistic Savings Promises: Be wary of claims that seem too good to be true.
- Vague or Incomplete Cost Breakdowns: Insist on itemised quotes.
- Lack of Credentials or Reviews: Only trust certified, well-reviewed installers.
- Hidden Fees or Unclear Terms: Ask for clarification on any ambiguous charges.
Step-by-Step: How to Get and Compare Quotes
- Research Local Installers: Use trusted directories or recommendations.
- V2. Request at Least Three Quotes: This gives you a solid basis for comparison.
- Ask Questions: Don’t hesitate to clarify technical details or costs.
- Compare Like-for-Like: Ensure each quote covers the same system size, battery capacity, and installation scope
- Check Reviews and References: Look for recent customer feedback and case studies.
Optimising Your Solar Investment
- Consider Your Energy Usage: Tailor system size and battery capacity to your household’s needs.
- Think Long-Term: Prioritise quality equipment and strong warranties over the lowest upfront price.
- Plan for the Future: Choose systems that allow for future expansion or upgrades.
Frequently Asked Questions
Most UK homeowners see a payback period of 5–10 years, depending on usage and energy prices.
Most homes don’t, but listed buildings or those in conservation areas may require it.
Yes, but it’s often more cost-effective to install both at once.
Takeaway
Comparing solar PV and battery quotes is the first step to a smart, sustainable investment. Focus on technical details, certified installers, and transparent pricing. Always get multiple quotes, ask questions, and choose the solution that best fits your home and energy goals.