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The Mobility House Energy and Re-Twin Energy launch the first BESS marketing product with an integrated, independent trading benchmark.

Florian Heise
June 22, 2026
5 min

As the first BESS optimizer, The Mobility House Energy subjects itself to an independent, asset-specific benchmark. Calculated daily by a third party with no trading interest. No portfolio index, no self-reporting. Bankability without sacrificing upside and the solution to the "Single Source of Truth" problem in BESS trading.

Berlin/Munich, 22.06.2026 The Mobility House Energy and Re-Twin Energy enter into a strategic partnership and bring a new commercialization product to market. For every battery storage system marketed by The Mobility House Energy, Re-Twin creates an individual digital twin and calculates a daily independent performance baseline. The real trading performance is transparently measured against this baseline.

The partnership thus addresses one of the most frequently cited problems in the BESS industry: the lack of a reliable, neutral reference. In current industry surveys, roughly half of all operators cite the lack of a unified "Source of Truth" as a central operational hurdle. Identical KPIs are calculated in multiple, contractually equally permissible ways. The Mobility House Energy is the first optimizer that does not merely describe this problem, but resolves it through a firmly integrated, independent measurement.

One methodology. From the business case to the daily benchmark.

Re-Twin creates a dedicated digital twin for each individual asset with its specific technical parameters, real availabilities, warranty limits, and operational restrictions such as FCAs. During the investment phase, this twin delivers robust business cases and long-term forecasts. In operation, it becomes the daily yardstick: a dedicated optimizer calculates, based on real market data, what the asset could have earned across all relevant markets (Day-Ahead, Intraday, FCR, aFRR), taking into account exactly its real restrictions.

No generic portfolio index. No self-reporting by the optimizer. An asset-specific baseline, calculated by an independent third party, using the same transparent and openly documented methodology that already underpinned the business case. Only an independent third party without its own trading interest can deliver a baseline that operators, investors, and banks can equally trust.

This takes the product beyond today's common practice, in which marketers merely report the realized total revenue as the sole KPI to their customers. Going forward, operators will see not only what was earned, but against which objective benchmark this performance stands.

Transparency and de-risking for operators, investors, and banks

Operators see daily how the real commercialization revenues perform against the independent reference. Combined with performance-based compensation mechanisms, this creates a robust foundation for investors and financing banks – the protection that financing partners demand, without capping the upside that a fixed revenue floor typically costs.

This is the decisive difference from guarantee-based models: instead of purchasing bankability through a capped fixed remuneration, it is achieved here through verifiable transparency, with full access to merchant upside.

Quote

"We show daily what a storage asset could truly have earned under its real conditions. Verified by an independent third party. This creates the trust that makes projects financeable, without capping the upside," says Marcus Fendt, Managing Director of The Mobility House Energy. "With 10 years of experience in BESS commercialization and a GW of operational portfolio across four countries, we are setting a new standard for bankability in the industry."

"Re-Twin creates a dedicated digital twin for each asset. We don't market, we measure," says Florian Heise, Co-Founder of Re-Twin Energy. "The methodology that underpins the business case continues to run in operation as an independent benchmark. Storage projects thus become plannable and financeable."

At a glance

  • Custom digital twin for every single asset. No generic market index, no self-reported data from the marketer.
  • Baseline calculated by an independent third party with no trading interest. No structural conflict of interest.
  • Daily baseline covering all relevant markets—Day-Ahead, Intraday, FCR, and aFRR—factoring in real-world constraints (FCAs, availability, warranty limits).
  • A unified methodology spanning from the investment case to ongoing operations. No disconnect between planning and reality.

Bankability without sacrificing upside

for transparency-based hedging instead of guarantee-based capping.

About The Author

Florian Heise
Florian Heise

Florian Heise is an energy-industry specialist with experience in consulting, logistics tech, and green-hydrogen development. As former head of strategic projects, he researched BESS and energy-storage markets across Germany and the EU. Today, he uses that knowledge as co-founder of Re-Twin Energy. Florian holds a Master’s in Finance & Accounting from Freie Universität Berlin and has even run a small coffee-import venture.

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