Solar tiles look like roof tiles. They cost 2–4x conventional panels and rarely make economic sense — but for listed buildings or strict planning, they're the only PV that gets approved.
Solar tiles cost £2.50–£4.20 per W installed in 2026 vs £1.65–£2.10 for conventional panels. They produce 12–20% less per m² and have shorter warranty histories. Pick tiles only when conventional panels won't get planning approval (listed buildings, contentious conservation areas) or when you're already re-roofing and the marginal cost over a new tile roof is acceptable.