Can I upgrade to a different brand?

Yes — as long as the new inverter matches your panel configuration (voltage, current, power). An MCS electrician ensures compatibility. This is a good opportunity to switch to a brand with better monitoring.

How long does replacement take?

2-4 hours for a like-for-like replacement. Half a day if upgrading to hybrid + battery. Your solar system is offline during replacement — try to schedule for an overcast day to minimise lost generation.

Should I upgrade to a hybrid inverter?

If you plan to add a battery within 5 years: yes — install the hybrid inverter now and add the battery later. The hybrid inverter costs only £200-£500 more than a standard replacement.

Does the new inverter need DNO notification?

If like-for-like (same kW rating): usually no. If upgrading to a larger inverter or adding battery: yes — your installer handles the G99 notification.

Inverter Replacement UK

By Home Solar Guide Team|Updated 20 March 2026|guide

Independently written | Plain-English guide

Inverter replacement — Inverters last 10-15 years. Replacement: £800-£2,000. Upgrade to hybrid for battery support.

What would this actually cost at your home?

Installed prices vary widely by roof, access and region. Get an installed price for your property from MCS-certified installers.

Get an Installed Price

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What would this actually cost at your home?

Installed prices vary widely by roof, access and region. Get an installed price for your property from MCS-certified installers.

Get an Installed Price

How much does inverter replacement cost?

Solar inverter replacement guide: LIFESPAN: 10-15 years (vs 25-30 for panels). You'll likely replace 1-2 inverters during your panels' lifetime. COST: String inverter replacement: £800-£1,500 (including labour). Hybrid inverter upgrade: £1,200-£2,000 (adds battery capability). Micro-inverter replacement: £100-£200 per unit (but they last 25 years). SIGNS OF FAILURE: error codes on display, reduced output (check monitoring), unusual noise, tripping the circuit breaker. WHEN TO REPLACE: if under warranty (10-12yr): manufacturer replaces free. After warranty: replace promptly — a dead inverter means zero solar generation. UPGRADE OPPORTUNITY: when replacing, upgrade to a hybrid inverter (GivEnergy, SolaX) and add a battery. This is the cheapest time to add battery storage.