For the first time in several years, it feels as if many companies in the European solar sector may be able to work through the summer again, instead of waiting for the traditional restart in September. Demand is not exploding, but it is returning. Conversations are becoming more concrete. Projects that had been delayed are being discussed again, and companies that spent the past two years mainly defending margins are starting to look forward.
That does not mean the market has suddenly become easy – far from it. But the mood has changed, and more importantly the conversation has also changed. Solar remains essential, but battery storage is becoming unavoidable.
Not just return, but growth
For years, the discussion around battery storage was mainly financial. What is the return on investment? What is the payback period? What can be earned from arbitrage, imbalance markets or grid services? Those questions are still relevant. A battery still needs a solid business case, but in many commercial and industrial projects I notice that the discussion is shifting. For many companies, battery storage is no longer only about earning extra return – it is about being able to keep growing.
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Can a company expand production if its grid connection has already reached capacity? Can it install charging infrastructure for electric trucks or company fleets? Can it electrify heating, cooling or industrial processes? Can it make better use of its existing connection instead of waiting years for grid reinforcement? In each of these cases, a battery stops being simply an investment product. It becomes part of the company's operating model. That is a fundamental shift. Battery storage is becoming growth infrastructure.
The entrepreneurs are moving first
The market for battery storage is still largely being driven by entrepreneurial risk-takers, companies willing to move before every question is settled. They are not waiting for every political question to be answered, every grid operator to build the perfect framework, every insurer to fully understand the technology, or every bank to develop a standard financing model.
They move because they have to. I see this more and more in the C&I segment, where companies that genuinely need more energy capacity rarely approach storage as a theoretical exercise. They turn to it because their business cannot afford to stand still. This is also where the gap between policy and practice becomes visible. In many countries, politics still seems to underestimate what battery storage can contribute, and the discussion often stays too abstract: subsidies, permits, grid tariffs, fire safety, congestion rules, cable capacity, market design.
All of these topics matter. But while they're debated, entrepreneurs are grappling with far more practical questions. Can I expand my business? Can I electrify my operations? Can I keep serving my customers? Can I avoid waiting five or ten years for a heavier grid connection? That is why battery storage should not only be treated as a technical asset or a financial product, it should be seen as part of the infrastructure needed to keep the economy moving.
Intersolar confirmed the direction
At Intersolar Europe, this shift was visible everywhere. Storage was no longer a side theme, it was one of the central themes of the exhibition. Residential batteries, C&I units, hybrid PCS technology, EMS platforms, EV charging integration and complete containerised battery installations filled the halls. Manufacturers are no longer positioning themselves only as module suppliers, more and more are presenting themselves as integrated solar-plus-storage providers. That is not a small change in marketing language, it is a structural change in the industry. The old solar market was built around hardware: modules, inverters, mounting hardware and installation capacity.
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The next phase will be built around integration: solar generation, battery storage, energy management, trading, grid interaction and long-term service. This also changes the role of distributors and EPC companies. The old model of simply moving boxes from factory to customer carries less weight now. The market increasingly calls for technical knowledge, financial understanding, software integration and the ability to translate complex energy challenges into workable outcomes. The companies that grasp this will create value. The companies that continue to compete on price alone will struggle.
A recovering but unpredictable market
The improving market sentiment does not mean the supply chain has become stable. June brought another reminder of how vulnerable global logistics remain: container prices, still around 1,500 dollars per container in the first quarter, jumped sharply to almost 6,000 dollars. Rates began easing again in July, but the situation remains uncertain. As long as geopolitical tensions persist in the Middle East and shipping routes stay vulnerable, logistics will remain a risk factor for both solar and storage.
At the same time, manufacturers and buyers are already eyeing the next potential cost shock from China. With fiscal support measures set to shift from January 2027, and lead times running three to five months, it would be no surprise if factories ramp up production in the coming months to get ahead of the expected price pressure. So yes, demand is improving, but predictability has not returned, and that is probably the new normal for this industry.
Storage no longer a niche
The broader market signals point the same way. Germany kept adding solar capacity in the first half of 2026, even as policy uncertainty lingers. Across Europe, solar generation continues to reduce dependence on imported gas and strengthen energy security. Outside Europe, large solar-plus-storage projects are becoming increasingly common, with hybrid renewable installations in Asia, the Middle East and other fast-growing markets moving from concept to bankable infrastructure. This matters for Europe too.
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It shows that storage is no longer a niche market. It is becoming a global infrastructure theme, and that should change the way we talk about batteries. If we judge storage only by today's revenue models, we miss the bigger picture. Its real value lies not only in market trading, arbitrage or peak shaving, but in flexibility, resilience, grid access and the ability to sustain electrification. In other words, storage is becoming part of the foundation of the energy system.
The market is acting
The solar and storage industry has never been boring, but this phase is particularly interesting. Solar demand is recovering. Battery storage is accelerating. Product innovation is moving fast. Supply chains remain volatile. Regulation is still catching up. And entrepreneurs are often moving faster than the systems around them. That creates friction, but it also creates opportunity. The most important signal after Intersolar is not that the market suddenly turned optimistic again, we've seen sentiment shift before. The real signal is that more companies are acting.
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They are building storage propositions. They are adapting their business models. They are combining PV, batteries, EMS and charging infrastructure. They are no longer waiting for perfect conditions. That may be the real turning point. The market is moving again, but this time, batteries are no longer optional. (Gerard Scheper/hcn)
