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Module prices declined in September

September on sun.store: module prices ease as home storage climbs

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Prices for modules and home batteries headed in opposite directions in September 2026, sun.store’s indices show, as module demand edged up and commercial storage stayed firm.

Dr Tim Juan (left) is CTO of Ampace

Ampace: strategies and innovation for the European storage market

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CEO Talk: The European energy storage market is growing dynamically, and so are the demands on profitability, safety and system integration. We find out how Ampace is positioning itself in this environment, the role Europe plays for the company, and which advances and technologies are set to shape the market next.

The SAX Power Manager app at a glance, in its German version

SAX Power has one app to rule the home energy system

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Designed for the Manager Pro and Manager Plug-In energy management systems, the storage specialist’s new mobile app controls solar, storage, heat and EV charging from a single screen.

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European validation strengthens the case for LONGi’s BC technology

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For utility-scale solar projects in the DACH region, module choice affects more than peak power: it shapes energy yield, land use and the investment case over the project’s lifetime. European research, testing and field assessments of LONGi’s Back Contact (BC) technology provide locally relevant evidence that developers and investors can consider in due diligence, alongside their own site-specific analysis.

Atmoce is entering the C&I business with its new Atmoce storage

Atmoce: new BattBank C&I storage system

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PV Guided Tours: Atmoce is introducing a 25-year warranty on its residential storage system and unveiling intelligent module-level energy management that supports automated snow clearing of solar panels. On the storage side, the portfolio is being expanded with the C&I BattBank, the first AC-coupled, stackable commercial storage system designed for low-voltage operation.

Pascal de Boer is General Manager Europe at SolarEdge

Pascal de Boer: "The most interesting driver is cybersecurity itself"

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SolarEdge's European chief explains why hyperscaler power demand and cybersecurity concerns around Chinese inverters are reshaping the company's strategy on the continent, alongside AI, US manufacturing and the new Nexis platform.

Both visible residential tiers turned upwards in September

September Battery Index: residential prices climb, commercial holds firm

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All three home storage tiers rose in September 2026, by between 7 and 10 percent, with low-voltage systems reaching €94.4/kWh. Commercial pricing held steady in smaller systems and firmed in larger ones, sun.store data shows.

Same rooftop, same TOPCon dominance, but the monofacial-bifacial choice behind it is anything but settled

Five questions to ask before selecting a module

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As TOPCon dominance gives way to a more differentiated market, Ignacio Espinosa of JA (formerly JA Solar) sets out what really separates one module from another.

Sodium-ion cells take lithium and cobalt out of the equation

Revolta wins EU funding to bring its sodium-ion home battery to market

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Frankfurt startup Revolta has secured ERDF funding from Hesse for a plug-and-play sodium-ion battery that charges directly from the grid, aimed at flats and homes without solar.

Participants will get an overview of Croatia's regulatory framework for energy communities

Croatia's energy communities get a hands-on playbook

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ZEZ and partners bring the "Energy Communities in Practice" conference to Bol on 24 and 25 September, focused on setting up, financing and running shared solar installations.

Light gets in easily, and the trick is keeping it from getting out

Narrowing the angle – a simple fix for solar cell losses

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By restricting the directions in which organic solar cells emit light, researchers at ICFO have reduced Boltzmann losses, opening a possible route beyond the Shockley-Queisser limit.

Katharina David discusses the trends shaping mounting technology today

K2 Systems: innovations are opening up new applications

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CEO Talk: Installers and EPCs are facing dual pressure. Project sizes are growing and installation windows are tightening, while demands regarding quality, reliability and safety are rising. How are mounting system providers responding to these challenges? Here’s what they told us.

A low-profile approach to load-limited roofs

Solcliv brings tilted PV to load-limited roofs

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Where roofs cannot take the weight of conventional PV, a new mounting system for lightweight modules offers an alternative for commercial, industrial and warehouse buildings.

Gregor Kuschmann (right) presents the new Battery vision 2

Solarwatt: from home to market – complete systems for buildings

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PV Guided Tours: Homes are increasingly becoming energy producers. Sector coupling within the building is growing in importance and even electric vehicles are now part of the picture. Gregor Kuschmann and Robert Pawlik of Solarwatt explain which components and solutions make energy independence possible and how buildings are playing a new role in the energy market.

From a previous delivery: hospital staff carry in the equipment themselves

Another Biohaus solar shipment heads to Ukrainian hospitals

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A Biohaus Foundation truck packed with solar modules and batteries is due to leave Paderborn for five sites across Ukraine. Among them are hospitals in Kyiv, Sumy and Trostianets, which will need power they can rely on as winter approaches.

Neat rows of storage: Greece’s 4.7 GW will need many more

Greece set to rank 4.7 GW of battery storage projects

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Around 720 projects with 9 GW of capacity are competing for grid connections worth around €2 billion in investment, but analysts are split on how much will actually be built.

Our guest author Gerard Scheper, CEO of European Solar

Opinion: Europe needs battery suppliers who stay after the sale

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As manufacturers bypass distributors and sell C&I storage directly to installers and EPCs, buyers must establish who handles integration, commissioning and repairs. Removing a distributor does not remove the work, says market expert Gerard Scheper.

Public ownership is back on the Westminster agenda

Great British Grid and the state’s return to network investment

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Andy Burnham’s new public grid body will co-invest with private operators and bid for transmission work. What is it, how does it work and why does the politics matter?

New mounting technology is opening up even more areas for solar power

Solar Investors Guide – Innovations for mounting

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Energy crises and rising fossil and nuclear prices are making solar and battery storage more attractive than ever, driving demand across industrial rooftops, open land and car parks – find out more in the latest guide.