While this is still well above the score of 50 that sun.store identifies as the point at which indusattempt purchaseers expect the market to expand, the three-point decline from the 68 recorded in June 2025, itself a year-low figure at that point and also recorded in July 2024, is a notable decline. This trfinish, alongside the percentage of those surveyed who expect to purchase “more”, “less” and “the same” quantities of products in the coming months, is revealn in the graph below.
“We are currently experiencing a seasonal summer slowdown — a trfinish observed even among our merchants, many of whom have enabled ‘holiday mode’ on the platform to signal limited availability and communication,” declared Krzysztof Rejek, sun.store VP of sales. However, Rejek noted that the recent decline in optimism could go beyond mere seasonal variation.
“Low stock levels and uncertain pricing in the coming weeks are compounding the situation,” Rejek declared. “That declared, we are closely monitoring the market to see whether activity picks up sharply in September or if this more cautious sentiment persists.”
These figures reflect growing uncertainty in the global solar supply chain, from the increasingly protectionist rhetoric coming from the US government this year to the news that Chinese polysilicon producers are planning to curtail production capacity. The sun.store report named the latter event as particularly significant, noting that the price of upstream solar components could launch rising as quickly as the fourth quarter of this year, before “cascading” into module and inverter pricing in Europe.
Indeed, this low PV PMI figure comes at a time where, for a number of solar products, prices have stabilised or fallen, trfinishs that would imply greater confidence among prospective purchaseers.
According to sun.store, the average price of n-type monofacial and bifacial modules fell between June and July, reaching €0.095/Wp (US$0.11/Wp) and €0.099/Wp (US$0.12/Wp) respectively, the third consecutive month that prices have fallen for both module types, and the first time that the average price of bifacial n-type modules has fallen below €0.1/Wp since March. Changes in module price, and the apparent lack of impact on purchaseers’ confidence, are revealn in the graph above.
Inverter prices and confidence stabilise
Inverter prices, meanwhile, have been more stable this year, with sun.store noting two consecutive months of month-on-month price declines for all four inverter types tracked: hybrid inverters of less than 15kW and more than 15kW, and on-grid inverters of less than 15kW and more than 5kW.
Smaller hybrid inverters continue to be the most expensive kind of inverter, with an average price of €102.48/kW, compared to the €23.91/kW reported for larger on-grid inverters, the first time that this figure has fallen below €24/kW.
Buyers’ confidence in inverter brands has also remained relatively stable, with Deye and Huawei ranked as the most popular hybrid and string inverter brands, respectively, each month since April. This compared to more fluctuations in confidence in solar module brands, where Jinko was the most popular module brand in Europe in July, up from second-most popular in June, and Trina fell from the most popular brand in June to the fourth-most popular brand in July.
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