FiT-Era Solar System Support
Specialist support for the ~600,000 UK solar systems installed under the Feed-in Tariff scheme between 2010 and 2015. Inverters that are now end-of-life. Optimisers dropping offline. Original installers gone out of business. We pick up where they left off — and keep your FiT income intact.
FiT systems are entering their replacement decade
If you installed solar between 2010 and 2015 under the UK Feed-in Tariff, you're now sitting on one of the most valuable household energy assets in the country. A 4 kWp system commissioned in 2012 typically pays £1,200–£2,400 per year in FiT income alone — index-linked, and locked in until 2032.
But the hardware around those panels is showing its age. String inverters from 2012 have a typical 12–15 year service life. SolarEdge optimisers from 2014 are entering their second-decade of operation. DC isolators from the 2010–2017 era have been linked to the small but real fire risk that prompted the BSI updates in 2018.
Most of all: the installers who fitted those systems have largely disappeared. The 2010–2014 era saw thousands of smaller installers operating under generous FiT economics. By 2024, half of those companies had folded. You may have an active FiT contract paying £2,000+/year and no installer to turn to when something goes wrong.
That's where we come in.
What needs attention by system age
| System age | Common issue | Indicative cost |
|---|---|---|
| 10–12 years | String inverter approaching end of life | £1,400–£2,200 fitted |
| 12–14 years | Optimisers (SolarEdge / Tigo) dropping offline | £90–£140 per optimiser |
| 13–15 years | DC isolators showing arc damage / corrosion | £280–£420 per isolator |
| 12+ years | Original installer gone out of business | £149/year ongoing |
| 10+ years | Smart meter not yet installed (no SEG eligibility) | Free (supplier-funded) |
| 14+ years | Want battery storage but FiT prohibits "system enhancement" | £6,800–£8,400 fitted |
What you CAN and CAN'T do
Mishandled work voids your FiT contract — costing you tens of thousands over the remaining contract life. We model every change against your FiT terms before recommending it.
- Like-for-like inverter replacement (same kW)
- Optimiser / microinverter replacement (warranty)
- Panel replacement (if individual panels fail)
- AC-coupled battery storage (separate meter loop)
- Roof repairs / re-roofing (panel removal & refit)
- EV charger installation (separate circuit)
- Adding monitoring or app integration
- Adding more panels (system kW increase)
- Inverter swap that increases system kW
- Moving panels to a different building / address
- Permanent disconnection from the metering chain
- Removing the FiT meter without re-registration
- DC-coupled battery via direct PV input swap (for some FiT terms)
- Re-roofing without timely refit (>180 days off-system)
What FiT-era owners do next
FiT-era system questions
What is a FiT-era solar system?
Will replacing my inverter cancel my FiT?
Can I add a battery to a FiT system?
Should I move to SEG instead of FiT?
When does my FiT contract expire?
My system has stopped generating — is it the inverter?
Can I "upgrade" my FiT system to a hybrid inverter?
How long will FiT-era panels last?
What if my original installer has gone out of business?
Should I sell the house WITH the solar or take it with me?
Get your FiT system audited
Free phone consultation. We'll review your FiT contract terms, current system status, and outline the upgrade options that preserve your income. No obligation.
