Trends in Battery Energy Storage: Insights from Experts

The battery storage market is maturing rapidly — and the gap between operators who understand the new rules and those still playing by the old ones is widening every quarter.

At the Energy Storage Summit 2026, Rimshah Javed, Principal Originator at Danske Commodities, sat down to unpack what's actually moving the needle in European battery energy storage right now. Javed works at the intersection of trading, offtake structuring, and market optimization — which means her perspective cuts across the technical and commercial realities that most analysts only see one side of. The conversation covered BESS offtake dynamics, optimization strategies, frequency containment agreements in Germany, and the surprisingly rapid emergence of the Danish market.

Here's what stood out.

BESS Offtake Is Getting Smarter — and More Demanding

For years, battery storage offtake was relatively straightforward: sign a long-term agreement, capture ancillary services revenue, done. That model is under pressure now, and Javed's comments at the summit make clear why.

The sophistication required to structure a competitive offtake deal today looks almost nothing like what it did three years ago. Market participants are no longer just asking, "What revenue streams are available?" — they're asking which combination of revenue streams, across which markets, at which times of day, actually maximizes the asset's lifetime value.

This shift matters enormously for project developers and asset owners. An offtake partner who can only optimize within a single market or a single product is leaving money on the table. The assets themselves — lithium-iron-phosphate systems cycling multiple times per day — are capable of far more than most static offtake structures allow for. The deal structure has to keep up with the hardware.

The secondary implication is on bankability. Lenders financing BESS projects want predictable revenue. But the most predictable revenue streams — capacity payments, fixed-price FCR contracts — are often not the highest-value ones. Javed's work at Danske Commodities sits directly in that tension: finding structures that give financiers enough certainty while preserving enough flexibility to actually optimize the asset.

What's Happening in Germany: FCAs and Market Complexity

Germany has become one of the most closely watched BESS markets in Europe, partly because of its size and partly because its ancillary services markets have real depth. Frequency Containment Agreements — FCAs — are central to that story.

For those less familiar: FCAs are contractual arrangements that govern how a battery asset participates in frequency regulation markets, specifically Frequency Containment Reserve (FCR). FCR requires assets to respond automatically and near-instantaneously to grid frequency deviations, making it a natural fit for batteries. Germany's FCR market has historically offered some of the strongest pricing in Europe, which made it the default target for early BESS deployments.

The problem is that strong pricing attracts capital, capital brings new capacity, and new capacity compresses margins — a cycle that has played out visibly in German FCR over the past two years.

This is where the optimization conversation gets interesting. Sophisticated operators aren't abandoning FCR; they're layering it. A battery that participates in FCR during high-value periods while capturing intraday arbitrage during others — and does this dynamically based on real-time market signals — earns materially more than one locked into a static product. Javed's role at Danske Commodities involves exactly this kind of multi-market optimization architecture, which is why her observations on FCA structuring carry weight.

The regulatory environment in Germany adds another layer. Grid operators have specific technical prequalification requirements for FCR participation, and changes to those requirements ripple through the economics of every asset in the market. Staying ahead of that regulatory curve — not reacting to it after the fact — is a core competency for serious players.

Denmark: The Market That Quietly Took Off

Perhaps the most striking data point from Javed's summit appearance was the emergence of the Danish BESS market. By her account, it has taken off meaningfully over the past year — notable because Denmark wasn't on most European storage investment maps even recently.

What changed? A few things converging simultaneously. Denmark has one of the highest shares of variable renewable energy in Europe — wind covers more than half of annual electricity consumption in most years — which creates structural demand for fast-response storage. Grid frequency stability is a genuine operational challenge, not a theoretical one. That underlying need creates real market depth for storage assets that can respond quickly.

Danske Commodities, headquartered in Aarhus, Denmark, has natural proximity to this market and the regulatory relationships that come with operating in it for years. But the growth Javed describes isn't just a home-market story — it reflects broader regulatory and market design changes that have made battery storage economics work in the Danish context.

For developers and investors scanning European markets for the next high-growth opportunity, Denmark deserves serious attention — not as a secondary option, but as a primary target.

The Danish power market is also deeply integrated with the broader Nordic system and interconnected with German and Dutch markets through significant cross-border capacity. That interconnection creates both opportunities and complexities: a battery in Denmark isn't just playing the Danish market; it's participating in a regional pricing dynamic. Operators who understand that interconnection — who can optimize across borders in real time — have a structural advantage.

The Optimization Imperative

The thread connecting everything Javed discussed at the Energy Storage Summit is optimization — specifically, the gap between what a BESS asset *could* earn and what most assets actually earn.

That gap is larger than most owners realize. Studies across European markets consistently show that dynamically optimized battery assets outperform statically contracted ones by 20-40% on revenue, sometimes more in markets with high price volatility. That's not a marginal difference. On a 50MW asset with a 10-year asset life, the cumulative delta runs into tens of millions of euros.

The optimization challenge has a few dimensions. There's the trading layer — real-time decisions about which market to dispatch into and when. There's the degradation management layer — cycling strategies that maximize revenue while preserving battery state of health over the asset's lifetime. And there's the forecasting layer — anticipating market conditions hours or days ahead to pre-position the asset correctly.

No single team does all of this well in-house unless they've built specifically for it. Which is why the offtake and optimization partnership model that companies like Danske Commodities represent has become increasingly central to BESS project finance and development. The days of a developer owning and operating a storage asset with a generalist energy team are fading.

What Comes Next

The battery energy storage trends Javed outlined at the summit point toward a market that will reward specialization and penalize complacency.

Germany's ancillary services markets will continue evolving — FCR pricing pressure is real, but new products and market designs are emerging that create fresh opportunities for nimble operators. Denmark and other Nordic markets are entering a growth phase that will attract new capital and, inevitably, new competition. The operators who establish strong positions now will benefit from the learning curve advantage that only comes from years of actual market participation.

The assets are getting better — cycle counts are up, degradation rates are down, costs continue to fall — but the competitive differentiation is increasingly happening in the software, the trading strategy, and the offtake structure, not the hardware.

For developers evaluating new projects, the practical takeaway is this: your choice of optimization and offtake partner is at least as important as your equipment selection. Probably more. A well-optimized asset with mid-tier hardware will consistently outperform a poorly optimized asset with best-in-class cells. The Energy Storage Summit 2026 made that argument implicitly throughout — and Rimshah Javed made it explicitly.

The battery storage market is large enough to absorb significant capital for the next decade. The question isn't whether to participate. It's whether you're positioned to participate intelligently.

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[INTERNAL LINK: BESS Offtake Dynamics]

[INTERNAL LINK: Frequency Containment Agreements]

[INTERNAL LINK: Danish BESS Market Growth]