UK Solar Cost Index Q1 2026

How much do solar panels cost in Q1 2026?

UK Solar Panel Cost Index — Q1 2026 (January-March): Average fully-installed prices at 0% VAT: 2kW (5 panels): £3,200. 3kW (8 panels): £4,800. 4kW (10 panels): £6,500. 5kW (13 panels): £7,800. 6kW (15 panels): £8,900. 8kW (20 panels): £11,200. 10kW (25 panels): £13,500. COST PER kW: £1,350-£1,650 (decreasing with system size). ADD BATTERY: +£3,800-£5,500 for 5-10kWh. QUARTER-ON-QUARTER CHANGE: -1.2% (marginal decline from Q4 2025). YEAR-ON-YEAR CHANGE: -3.5% (from Q1 2025). Prices include: panels, inverter, mounting, wiring, scaffolding, DNO notification, MCS certification. Prices are compiled from MCS certified installer quotes across all UK regions (source: MCS, mcscertified.com) and cross-referenced with Solar Energy UK industry surveys (solarenergyuk.org). Note: individual quotes vary by ±15% based on roof type, access difficulty, panel brand choice, and regional installer competition.