From checking an offer to squeezing the last euro out of arbitrage — the complete Stromfee BESS toolset, now in English. Each app opens the live tool.
AI-powered offer review
Check BESS offers for completeness with AI. Automatic detection of missing specifications, risk assessment and Gamma.app report export — flags missing capacity / C-rate / DoD, incomplete warranties, hidden costs and deviations from market standards.
Economics calculator · 13 load profiles
Calculate the optimal battery size for your business. Peak shaving, ROI analysis and comparison of 13 industry profiles (supermarket, hotel, production…), built on real load curves and current power prices.
Electro-thermal ageing model
Precise lifetime prediction for LFP cells: calendar ageing (Arrhenius), cyclic ageing (DoD, C-rate, temperature), State-of-Health forecast and capacity curve over 20 years — grounded in research and manufacturer data.
Interactive assessment checklist
A 54-point checklist for systematic BESS evaluation across 5 categories: BMS functions & cell balancing, thermal management, communication interfaces, safety & certifications, warranty — with progress tracking and AI recommendations.
Revenue optimisation with power prices
Maximise BESS revenue through intelligent charge/discharge: day-ahead arbitrage (EPEX spot), intraday trading, peak shaving to cut demand charges, and §14a EnWG control for reduced grid fees — with automated control integration.
Business case & payback
Build the business case for a battery project: revenue streams, capex/opex, payback and ROI under current power prices — turning a technical concept into a financial decision.
Connection & load assessment
Analyse the grid connection and load profile: available connection capacity, peak loads and where storage relieves the grid — the technical groundwork before sizing a battery.
These tools run today on real German projects. We localise and connect them to your grid and your batteries — let's pilot it.