Why does MCS certification matter?
MCS (Microgeneration Certification Scheme) certification is the UK quality standard for small-scale renewables. It is mandatory to qualify for the Smart Export Guarantee, and it ensures the installation meets recognised quality standards with insurance-backed warranties. Always verify certification on the official register at mcscertified.com rather than trusting a logo on a website.
How do I check the MCS register?
Go to mcscertified.com and use the installer search. Enter the installer's name to confirm they are currently certified. Certification lapses, so checking the live register — not a PDF certificate — is the reliable way to verify. Our installation partners are MCS-certified, and we are happy for you to confirm this on the register.
Why is DNO experience important in Scotland?
Scotland has two Distribution Network Operators — SP Energy Networks (SPEN) for the Central Belt and South, and SSEN for the Highlands and North East. An installer familiar with Scottish DNOs handles G98 (up to 3.68kWp, 30-day prior notice) and G99 (above 3.68kWp, application required) notifications correctly. Installers used to English DNOs like UK Power Networks may not know SPEN or SSEN processes, which can cause connection delays. Read more on our DNO Scotland page.
What should a solar quote include?
Panel brand, tier and quantity (kWp)
Inverter type (string or hybrid)
Battery size (kWh) if included
Mounting system and scaffolding
DNO notification to SPEN or SSEN
Total price, timeline and VAT
A proper quote is written and itemised. Avoid any installer who gives only a verbal estimate or a single round number with no breakdown. We provide a fixed, itemised quote after a no-obligation survey.
What warranty and aftercare should I expect?
Solar panels typically come with a 25-year performance warranty. Inverters usually last 10–15 years and batteries around 10–12 years. Ask whether the workmanship warranty is insurance-backed and what aftercare is offered. MCS-certified installations include insurance-backed guarantees. See our guarantees page for what we cover.
Should I check TrustMark registration?
Yes. TrustMark is a UK government-endorsed quality scheme covering workmanship and customer protection. An installer registered with TrustMark has met recognised standards. Our installation partners are TrustMark registered as well as MCS-certified. Ask any installer to confirm their registrations before you commit.
How do Scottish Energy Efficiency's installers measure up?
We install through MCS-certified partners who are also TrustMark registered. We handle all SPEN and SSEN DNO notifications, provide a written, itemised quote after every survey, and include insurance-backed warranties. Learn more about how we work on our how it works and about pages, or call 0141 230 0198.