AleaSoft Energy Forecasting, April 23, 2026. The European electricity sector is undergoing a structural shift driven by the large‑scale penetration of renewable energy, increased volatility and the growing importance of storage. In this context, market forecasts are no longer merely an analytical tool but have become a key element in project financing. Bankability, robustness and integration into financial models now define the true value of these forecasts.
Traditionally, the quality of a forecast was measured by its accuracy or methodological sophistication. However, the determining criterion has evolved towards its ability to be used, defended and accepted within an investment or risk committee. This shift marks the difference between a technically correct forecast and one that is genuinely useful within Project Finance.
From price curves to bankable inputs
In practice, this evolution involves moving from working with simple price curves to providing bankable inputs for financial models that enable robust modelling of the cash flows of renewable energy and storage projects, the construction of coherent scenarios such as P50, P10 and P90, the assessment of key metrics such as the DSCR (Debt Service Coverage Ratio), the analysis of risk and stress scenarios, and the definition of hedging and financial structuring strategies. In this way, the forecast ceases to be an isolated data point and becomes an integrated component of the project’s financial model.
The case of storage: complexity and opportunity
One of the areas where this shift is most relevant is energy storage, particularly in BESS systems. Unlike traditional renewable assets, whose revenues depend mainly on production and market prices, storage introduces multiple revenue streams and significantly more complex operations.
The evaluation of these projects requires long‑term hourly forecasts that capture the intraday market structure, realistic modelling of arbitrage spreads, detailed analysis of volatility and consideration of factors such as battery degradation and operational constraints.
In addition, revenues from balancing services and flexibility markets are gaining increasing importance. In systems with high renewable energy penetration, these services can represent a significant share of the revenues of a BESS system. Their omission or oversimplification may lead to incorrect project valuations, directly impacting their bankability.
The risk of simplified models
One of the main risks in this new paradigm is the use of overly simplified models that fail to capture real market volatility, underestimate the impact of renewable energy penetration on spreads, inadequately integrate balancing services or fail to properly model battery degradation. These approaches generate unrealistic scenarios that are unlikely to withstand scrutiny in financing processes.
Beyond accuracy: consistency and robustness
Financial institutions, funds and advisers involved in due diligence processes prioritise methodological consistency across projects, robustness under different market scenarios, model traceability and transparency, and the ability to explain and defend results. The objective is to reduce uncertainty and minimise the risk associated with decisions based on weak assumptions.
Bankability as the central criterion
All of this converges on the concept of bankability, which has become the central criterion. A forecast is bankable when, in addition to being technically sound, it can be seamlessly integrated into a financial model and defended before an investment committee. This implies alignment with the language and requirements of Project Finance, rather than solely with academic or statistical criteria.
Decision‑making in the face of market volatility
The energy sector is evolving towards an environment of greater complexity and uncertainty, in which market forecasts play a critical role. Their value no longer lies solely in their proximity to real prices, but in their ability to support confident investment and financing decisions. This shift is not a temporary trend, but a structural transformation that will shape the future of electricity market analysis and the development of renewable energy and storage projects.
AleaSoft Energy Forecasting’s analysis and forecasts for renewable energy and storage projects
AleaSoft Energy Forecasting, through its AleaGreen division, provides long‑term forecasts, essential for the financing of renewable energy projects, the negotiation of PPA contracts, asset valuation and the design of hedging strategies. Among the services offered by AleaGreen are production forecasts for different types of renewable power plants, accompanied by the corresponding price forecasts, as well as guarantees of origin forecasts.
In addition, the AleaStorage division provides forecasting reports for energy storage projects. AleaStorage services include the calculation of revenues and profitability for both stand‑alone battery systems and hybrid solutions, particularly in photovoltaic energy projects with storage.
Source: AleaSoft Energy Forecasting.