Solar Panels & the Energy Crisis: UK Perspective

UK electricity price trajectory:

| Period | Price Cap (p/kWh) | Solar Payback (4kW) | |--------|------------------|--------------------| | 2020 (pre-crisis) | 14p | 15–18 years | | 2021 (crisis begins) | 18p | 12–15 years | | Q1 2022 | 21p | 11–13 years | | Q4 2022 (peak) | 34p | 7–9 years | | Q1 2023 | 34p | 7–9 years | | Q4 2023 | 27p | 9–11 years | | 2024 | 25p | 9–12 years | | 2025 | 24p | 10–12 years | | Q1 2026 | 24.5p | 10–12 years |

The energy crisis halved solar payback periods. At 14p/kWh (2020), a 4kW system took 15–18 years to pay back. At 24.5p/kWh (2026), the same system pays back in 10–12 years. At the peak (34p), payback was just 7–9 years.

Even though prices have fallen from the 34p peak, they remain 75% above pre-crisis levels. The financial case for solar remains dramatically stronger than pre-crisis.

Source: Ofgem historical price cap data.

Short answer: probably not to pre-crisis levels.

Why electricity prices remain elevated: - Gas prices (which set marginal electricity prices) remain above historical norms - UK must invest £50bn+ in grid upgrades for net zero — costs passed to consumers - Renewable energy subsidies (CfD payments) add a small cost per kWh - Network charges are rising as infrastructure ages and demand grows - Carbon pricing adds cost to fossil fuel generation

Price forecast: - 2027: 22–28p/kWh (most forecasts suggest similar to current levels) - 2030: 25–35p/kWh (network and carbon costs rising, wholesale may fall slightly) - Long-term: upward trend (5–7% per year historically, likely to continue)

What this means for solar: Even at 'lower' future prices (22p), solar payback is 11–14 years — still strongly positive. If prices remain at 25p+ (likely), payback stays at 8–12 years. If prices rise to 30p+ (possible), payback drops to 7–10 years.

Solar is your hedge. Once installed, your solar electricity costs £0 regardless of what happens to grid prices. Every price increase makes your existing panels more valuable.

Source: Ofgem; Cornwall Insight; UK Government energy modelling.

For homeowners: 1. Energy independence is not just environmental — it is financial self-defence 2. Those who installed solar BEFORE the crisis were protected from the worst price increases 3. Waiting for 'cheaper panels' cost more in missed savings than any price drop would save 4. A battery + smart tariff provides near-complete insulation from grid price volatility 5. Solar is a 25-year investment — short-term price fluctuations do not change the fundamental case

For the market: 1. Solar demand is price-elastic — when electricity costs more, more people install solar 2. The installer market can scale rapidly to meet demand 3. Government incentives (0% VAT) have a meaningful impact on adoption 4. Battery storage is becoming standard, not optional 5. The UK has ample solar resource for meaningful household generation

The takeaway: The energy crisis proved that solar is not a luxury — it is financial infrastructure. Like insulation, it reduces your exposure to energy costs permanently. The question is not IF you should install solar, but WHEN.

Source: Energy Saving Trust post-crisis analysis; solar market data.