Why Solar Panel Prices Are Rising in 2026: What It Means for UK Homeowners

For more than a decade, solar panels followed a remarkably consistent trajectory: they got cheaper. Module prices fell by roughly 90% over the last ten years, according to Our World In Data, with costs dropping around 20% every time global cumulative capacity doubled.

That trend is now breaking. A combination of Chinese tax reform, sharp rises in raw material costs, and ongoing instability in global energy markets is pushing prices upward for the first time in years. The shift won't be sudden or uniform, but industry analysts and manufacturers agree it is underway.

Here's what's happening, why, and what UK homeowners watching the market should know.

What Changed in April: China's Solar Export Rebate

On 1 April 2026, China abolished its 9% VAT export rebate on solar photovoltaic products, including modules, cells and wafers. Battery products are following a phased reduction: the rebate drops from 9% to 6% in April 2026, with full abolition scheduled for 1 January 2027.

The rebate had functioned as an indirect subsidy, allowing Chinese manufacturers to sell internationally at prices well below what producers elsewhere could match. China supplies the overwhelming majority of the world's solar panels. According to data cited by Euronews and the International Energy Agency, China accounted for 98% of all EU solar panel imports in 2024, and its share of global solar manufacturing now exceeds 80% at every stage of the supply chain.

The policy change reflects a broader re-calibration by Beijing. An IEA report found that Chinese solar companies had accumulated roughly $5 billion in net losses since the start of 2024, the result of fierce price competition that had pushed many firms to sell below cost. Removing the rebate raises baseline export prices and gives manufacturers more room to operate sustainably.

Jannik Schall, Chief Product Officer at clean-tech firm 1KOMMA5°, told Euronews Earth that "the elimination of China's VAT export rebates alone will cause module prices to rise by around 10 per cent."

Silver, polysilicon and the materials squeeze

Tax policy is only part of the story. Raw material costs have also been climbing sharply.

Silver, used in the conductive paste that connects solar cells, is, by some measures, the single largest cost component in a panel. Although silver makes up less than 5% of a panel by weight, the analysts at German technology group Heraeus estimate it accounts for up to 30% of total solar cell costs. According to Schall, silver prices rose more than 150% in the early weeks of 2026.

Polysilicon, the base material for solar cells, has also become more expensive. After Chinese producers curtailed output to clear an existing oversupply, spot prices climbed from around €4 per kilogram in summer 2025 to roughly €6.39 by mid-January 2026, an increase of more than 37%. Aluminium (for module frames) and lithium carbonate (for battery storage) have also risen.

Taken together, 1KOMMA5° forecasts that the combined effects of the VAT change and raw material costs could push prices for individual components up by 15 to 20% throughout 2026. Analysts at Strategic Energy Europe and consultancy InfoLink Consulting put the range at 10-15%. Some Chinese manufacturers, including Jinko Solar and Trina Solar, raised their domestic module prices in the first quarter of the year.

A narrower but worth-noting pressure comes from the conflict in the Middle East. Most of a solar panel's bill of materials is unaffected, because China produces polysilicon, wafers and cells domestically. But module frames rely on aluminium, and PV glass depends on methanol, of which Iran is the world's second-largest producer and China's largest supplier. PV Tech reported in May 2026 that the closure of the Strait of Hormuz has begun to feed through to these specific inputs, adding modest cost pressure on top of the wider trends already in play.

When Higher Solar Prices Reach UK Homeowners

The supply chain has built-in lag. Distributors and installers tend to be working through stock procured at earlier prices, and some have actively built up inventory in anticipation of the April change. Energy think tank Ember reported that several European countries, including France, Italy, Poland and Romania, hit record levels of Chinese solar imports in March 2026 as buyers raced to beat the deadline.

That cushion buys a few months. Schall told Euronews Earth that raw material cost increases "are expected to reach end consumers this summer."

There are already early signs in the UK market. The i newspaper reported that one national solar installer has been forced to raise its average rooftop installation price by £800.

The likeliest pattern, according to most analysts, is gradual rather than sudden: a recalibration over months rather than a single-step jump. Whether the increase lands closer to 10% or 20% will depend on silver prices, competitive dynamics among Chinese manufacturers, and how quickly inventories are run down.

The Other Side: UK Electricity Bills and the July Price Cap

For homeowners weighing solar, hardware costs are only half the equation. The other half is the cost of grid electricity, which has its own complicated story.

The Ofgem price cap fell by 6.7% on 1 April 2026, taking the typical dual-fuel direct debit bill from £1,758 to £1,641 a year. The reduction came mainly from cuts to policy costs rather than wholesale prices.

That figure is set to change. Ofgem will announce the July 2026 cap on 27 May 2026, covering the period from 1 July to 30 September. Several major suppliers, including EDF, British Gas and E.on Next, are forecasting a significant increase, citing ongoing conflict in the Middle East, sustained wholesale costs and rising network charges.

The dominant factor behind those forecasts is the war between Iran, Israel and the United States that began on 28 February 2026, and the resulting effective closure of the Strait of Hormuz. Around 20% of the world's seaborne oil and a similar share of liquefied natural gas (LNG) normally passes through the strait. According to data from Lloyd's List Intelligence and Kpler reported by CNN, traffic has run at roughly 5% of pre-war levels in recent months. The head of the International Energy Agency, Fatih Birol, has described it as the largest oil supply disruption in the history of the global market.

For UK households, the practical effect is felt through gas. Europe sources between 12 and 14% of its LNG from Qatar, all of which previously transited Hormuz, and QatarEnergy has declared force majeure on affected cargoes. Because UK electricity prices are linked at the margin to the price of gas, that wholesale pressure flows through to the next price cap regardless of how much wind or solar the grid is producing on a given day.

One striking figure underlines the value of domestic generation in this environment. Energy Storage News reported in April 2026 that Britain has saved around £7 million a day since the start of the conflict, with existing solar PV and wind capacity reducing the need for imported gas.

The cap has been volatile throughout 2024 and 2025, ranging from around £1,570 in mid-2024 to about £1,850 in Q2 2025. Even with the recent fall, House of Commons Library analysis notes that electricity prices remain around 35% above their pre-energy-crisis levels, and UK domestic electricity is now more expensive than in all but one EU country (Germany).

The underlying reason is structural. Although the UK generates a large share of its power from wind and solar, gas-fired stations still set the wholesale electricity price at the margin. Until that link is broken, periods of cheap, stable electricity will likely remain elusive.

What does this mean for the homeowner's decision?

For anyone considering solar in 2026, the picture is more nuanced than it has been for most of the last decade.

Falling hardware prices used to mean that delays carried little risk: panels next year would be cheaper than this year's, and even if grid electricity rose, the equation would be broadly balanced. That assumption no longer holds. Hardware prices are flat to rising. Grid electricity is volatile and, according to most forecasts, is set to rise again in July.

That said, no single forecast is a basis for a financial decision. The actual return on a domestic solar installation depends on roof orientation and shading, household usage patterns, whether storage is included, export tariff arrangements, and current installer pricing in a given region. Several solar installers have begun publishing their procurement-date pricing more transparently to help homeowners understand which quotes still reflect pre-April supply costs.

For homeowners specifically considering the timing question, the relevant points to weigh are:

• Whether a quote in hand was priced from older inventory or current procurement costs
• How much annual electricity the household actually uses, and at what times
• Whether the Smart Export Guarantee tariff offered is competitive
• The condition and remaining life of the roof itself

The wider trend, as one analyst quoted by Strategic Energy Europe put it, is that "the era of artificially cheap modules is definitely coming to an end." That doesn't mean panels will become unaffordable, but it does mean the steady downward price drift that defined the last decade has, at least for now, paused.