A Wave of Price Increases That Is No Coincidence

On October 20, Huawei Digital Power warned its customers: its solar-plus-storage solutions, commercial and industrial systems, photovoltaic inverters and power plant equipment will see prices rise by 5 to 15%. Grid-forming high-power storage systems, including power conversion systems, will be affected more modestly, by 5 to 10%. The company says it has already absorbed part of the manufacturing cost overruns through internal efficiency gains, but can no longer hold its prices without compromising quality, delivery reliability or its service commitments.

The message matters less for its author than for its place in a sequence. Inovance Technology led the way in August with increases of 5 to 15% on its power conversion equipment for storage. Sungrow followed with 5 to 15% increases effective September 20, including 10 to 15% for its medium-voltage grid-connected models. Growatt announced 5 to 10% from October 8, KSTAR around 10 to 20%, and Kehua Digital Energy 5 to 15% from November 1. Seven players, similar ranges, a tight timeline: the pattern is that of a shared cost constraint, not isolated commercial strategies.

From Copper to Inverter: The Causal Chain

The mechanism is clear. An inverter or storage converter concentrates two families of sensitive inputs. Copper is found in busbars, cables, magnetic components and transformers. Printed circuit boards and semiconductors drive the control systems. Huawei attributes its increases to the rising cost of raw materials, printed circuit boards and memory components since 2025.

On copper, the level reached is telling: spot prices on the London Metal Exchange exceeded €12,700 per tonne in mid-October, or more than $14,700 in the original data. Supply tensions in electronic components add to this pressure, and manufacturers' purchasing constraints compound it.

The sequence that follows is classic. First, manufacturers compress their internal costs to hold their prices. When that room for manoeuvre is exhausted, pass-through becomes inevitable. Because all competitors buy the same inputs on the same markets, the first announcement reduces the competitive cost of the ones that follow. The cascade observed between August and November bears that signature.

Negotiated Increases, Hence Uncertain

It would nonetheless be wrong to read these ranges as a uniform cost increase. Huawei has not set an effective date and says adjustments will be subject to individual negotiations. The market power of large customers, existing contracts and volumes will determine the increase actually paid. The file contains no margins, no order books, no copper history for the year: the magnitude of upstream tension and its effect on downstream demand cannot be measured here. The justifications put forward remain, at this stage, corporate statements.

When the Value Chain Reconfigures

Cost pressure is part of a broader movement of industrial reorganisation, of which other recent signals bear witness without any mechanical link to rising input costs being established. Sinotruk, which presented an 800-volt architecture electric tractor with a battery of around 600 kWh at the Hanover show, has had its Europe-bound trucks assembled since March 2026 by Steyr Automotive in Austria, in a former MAN plant. The SKD process involves assembling on site sub-assemblies pre-built in China. Value is therefore fragmented: most of the manufacturing stays in China, final assembly moves closer to the market. The group claims more than 100,000 electric vehicles sold in more than fifty countries, which gives this architecture real scale.

At the other end of the energy chain, the International Energy Agency estimates that renewables allowed India to avoid more than $100 billion in coal and gas imports between 2011 and 2025, including about 110 million tonnes of coal in 2025 alone. This is a comparative scenario rather than realised savings, but the order of magnitude shows how a country reduces its exposure to world prices by substituting domestic production for imported fuels. India, the world's second-largest manufacturer of photovoltaic modules according to the same agency, surpassed 300 GW of renewable capacity in 2026. This ramp-up may redraw international supply chains, without guaranteeing contracts to European manufacturers.

The Cost of Technical Fragility

Cost tensions do not come from raw materials alone. The cyberattack of November 2, which hit supermarkets in nine European countries by remotely taking control of refrigeration regulation systems, is a reminder that a value chain also bears a vulnerability cost. In Sweden and Estonia, the temperature of some refrigerators rose to 50 °C. This wave came three weeks after the October 12 attack that hit nearly 700 French stores. In both cases, Danfoss software was the main entry point, and most of the devices concerned were legacy products no longer receiving security updates. A Belgian refrigeration manufacturer acknowledged that some of its installations had not yet been upgraded at the time of the new wave.

The European Commissioner for Agriculture, Christophe Hansen, estimated that food security was not threatened for the time being, but that waste and its repercussions on businesses were real. The cost of an ageing, unmaintained fleet of industrial equipment emerges here: it is paid in discarded goods and investigations, far from maintenance budget lines.

An Energy Context That Does Not Ease the Bill

On the energy consumption side, the picture remains tense in France. Gas prices rose 7.4% on July 1, 2026, and the national energy ombudsman expects further increases at least until early next year. The high price plateau, in place for two years, weighs on households and retailers alike. This is not an industrial cost indicator in the strict sense, but it confirms that the price of energy is not acting as a shock absorber.

What Can Reasonably Be Concluded

The available facts support a measured conclusion. In power electronics, the pass-through of input costs to selling prices is under way, with a synchronisation that suggests a common constraint. The 5 to 20% ranges are announcements, subject to negotiation, and their effect on demand remains to be seen. Assembly reconfigurations and the fragilities of the installed fleet are complementary signals of tension in value chains, but their link to rising input costs is not demonstrated. For equipment buyers, the question is no longer whether prices are rising, but what share of the increase they will manage to negotiate. The next pricing announcements, and the course of copper, will show whether the wave spreads or subsides.

This article was written with the assistance of artificial intelligence and verified by our editorial team.