Commercial & industrial energy storage · Europe
Estimate simple payback, net present lifecycle value and return on investment for a commercial and industrial battery energy storage system. Enter project-specific cost, savings, operating and finance assumptions; the calculator does not fill in missing market or equipment data.
30.1 MWh
Statkraft wind farm storage project in Spain
55 MWh
Razlog project in Bulgaria
2 GWh
Solarpro master supply agreement
A C&I BESS investment case depends on project economics rather than battery capacity alone. This free calculator lets European commercial and industrial users, project developers and EPC teams model their own assumptions for installed cost, annual savings or revenue, operating expense, degradation and financing. It returns an indicative payback period, ROI and lifecycle value, with a transparent breakdown so each input can be reviewed and changed.
C&I BESS ROI is a financial estimate of the value a commercial and industrial battery energy storage system may produce compared with its purchase, installation and operating costs. Project teams use it to assess use cases such as peak shaving, solar self-consumption, load shifting and grid services. It is an estimate shaped by local tariffs, operating strategy, system design and finance assumptions, not a guaranteed result.
Interactive project screening tool
Enter your project assumptions in euros. Annual savings and revenue should be a combined first-year estimate before operating costs. The tool applies the annual degradation rate to that benefit and discounts future cash flows using the rate you enter.
Use the output to compare scenarios, then validate tariffs, system performance, installation costs and contract terms with project-specific sources. The calculator does not add an assumed efficiency, market price or warranty.
Screening framework
An ROI estimate is only useful when the model's boundaries are clear. These criteria separate the financial assumptions from published equipment facts and project evidence.
Use the project cost basis that applies to the site, including the components your investment model counts. The calculator derives initial cost from energy capacity multiplied by cost per kWh.
Estimate the first-year savings and revenue your operating plan can support. Peak shaving, load shifting, solar self-consumption and grid services may have different value and market rules.
Enter annual operating expenses separately from gross benefits. Consider the project scope and cost categories your financial case includes.
The operating horizon and assumed reduction in annual value affect cumulative cash flow. Cell cycle-life specifications are not equivalent to system-level usable life.
A discount rate converts future cash flows to present value. The optional field models one replacement expense in a year selected by the user.
Check site conditions, system integration and applicable local grid requirements independently. A listed PCS certification does not establish that every configuration is suitable for every jurisdiction.
For projects where solar generation is part of the operating case, a solar self-consumption assessment can help organize the value assumptions. For grid-service cases, keep contracted or market-based revenues distinct from savings when developing the input estimate.
Evidence and assumptions
The calculator asks the user to supply financial assumptions. Published product data can inform technical screening, but capacity and cycle-life figures alone do not establish project ROI.
| Evaluation criterion | Relevant product design | Published parameter or evidence |
|---|---|---|
| Capacity and installed cost | Match energy capacity and configuration to the project’s needs before applying the project cost estimate. | Published C&I configurations include ∞Block 261kWh, ∞Block 418kWh and ∞Power 1022kWh. Published equipment capacity is not an installed project price. |
| Operating value | Estimate savings and revenue against the actual operating strategy, such as output smoothing, frequency regulation or peak shaving. | The Statkraft Montes de Cierzo project in Spain is documented as 30.1MWh paired with wind generation for output smoothing, frequency regulation and peak shaving/load shifting. |
| Cycle life and lifecycle | Separate cell-level cycle-life values from system-level figures and project operating assumptions. | ∞Power 1022kWh has a reported cycle life of over 8,000 cycles at SOH ≥70%. Cell specifications listed for several ∞Cell products are shown separately below. |
| Operating environment | Check the product’s published temperature, IP rating, elevation and site requirements against the proposed location. | Published product information lists IP55 for ∞Block configurations and IP55 + C5M for ∞Power 1022kWh. The specific product values are summarized in the configuration table. |
| Grid and regulatory fit | Confirm the precise product, PCS, jurisdiction and project configuration against applicable requirements. | Listed PCS certifications for ∞Block 261kWh include EN 50549-1, G99 and VDE 4110. Official materials also list EU Battery Regulation (2023/1542) among standards and regulations; applicability should be checked for each project. |
| Long-term cash flow | Use project-specific degradation, discount rate, operating cost and replacement assumptions in the calculator. | The calculator does not infer these values from product capacity, cycle-life figures or project announcements. |
Calculation method
The tool models a single initial capital cost, annual gross benefit that declines by the entered degradation rate, flat annual operating cost and an optional one-time replacement expense. Future cash flows are discounted at the user-entered rate. No electricity price, system efficiency, tariff structure or battery warranty is assumed.
Calculation formulas
Initial cost = energy capacity (kWh) × installed cost (€/kWh)
Year n benefit = year 1 benefit × (1 − annual degradation rate)^(n − 1)
Net present lifecycle value = − initial cost + Σ[(year n benefit − annual operating cost − replacement cost in year n) ÷ (1 + discount rate)^n]
ROI = net present lifecycle value ÷ initial cost × 100%
Simple payback is the first point at which cumulative undiscounted operating cash flow recovers the initial cost. The calculator reports “not reached within the analysis period” if the entered assumptions do not cross that point during the selected horizon. For market-specific inputs, a European grid revenue model should use project-specific commercial assumptions.
Specification summary
The following product parameters are evidence for technical screening, not financial defaults. Project teams should check the applicable product documentation and configuration before using any value in a design decision.
| System | Published configuration and capacity | Published lifecycle and operating data |
|---|---|---|
| ∞Block 261kWh | 125kW / 261kWh; 1P52S; nominal voltage 832V; operating voltage 715–923V. | IP55; operating temperature −30 °C to 50 °C. Official product page lists dimensions 1,350 × 1,000 × 2,350 mm and application altitude 3,000 m, with derating above 3,000 m. The datasheet lists 2,380 mm height and ≤4,000 m, with derating above 2,000 m. Listed PCS certifications include EN 50549-1, G99 and VDE 4110. |
| ∞Block 418kWh | 1P416S; nominal energy 417.99kWh; nominal voltage 1,331.2V; dimensions 1,350 × 1,300 × 2,350 mm; weight ≤3,700 kg. | IP55; operating temperature −30 °C to 55 °C; application altitude ≤4,000 m, with derating above 2,000 m. |
| ∞Power 1022kWh | 1,022.72kWh; product page lists 1P34S; 3.4 m² footprint; weight ≤8,000 kg; 870.4V; 1,000V DC system. | Cycle life reported as over 8,000 cycles at SOH ≥70%; IP55 + C5M; operating temperature −30 °C to 55 °C; application altitude ≤4,000 m, with derating above 2,000 m. A six-unit deployment is reported to save 42.3% of space. |
For ∞Power 1022kWh, the product page lists 1P34S; a launch news item lists 1P272S at cabinet level. These are retained as stated at their respective levels. For ∞Block 261kWh, the product-page dimensions and altitude are presented above alongside the differing datasheet figures so that the source distinction remains visible.
Cell-level data
The following values are cell specifications. They are not guaranteed system-level cycle life and should not be used as a substitute for the selected system’s performance data, operating profile or warranty terms.
Review BESS degradation assumptions| Cell | Chemistry | Published cell-level data |
|---|---|---|
| ESS Cell 314Ah | LFP | ≥13,000 cycles |
| ∞Cell 587Ah | LFP | ≥11,000 cycles |
| ∞Cell 1175Ah | LFP | ≥11,000 cycles |
| ∞Cell 1300Ah | LFP | ≥10,000 cycles; designed for 8-hour long-duration energy storage |
| ∞Cell N162Ah | Sodium-ion | ≥20,000 cycles and ≥94% efficiency at 1P; cell-level efficiency, not system round trip efficiency |
Configurations and use cases
A capacity match is only an initial filter. No configuration can be recommended from ROI alone without the project’s duty cycle, power requirement, site constraints, tariff and integration scope.
125kW / 261kWh
Published configuration 1P52S, nominal voltage 832V and IP55 rating. Review the product-page and datasheet differences in dimensions and application altitude before site screening.
Compare C&I BESS capacity needs417.99kWh nominal energy
Published data lists 1P416S, nominal voltage 1,331.2V, weight ≤3,700kg and operating temperature −30 °C to 55 °C. Project suitability depends on the site and system design.
Structure installed-cost assumptions1,022.72kWh
Published product data lists a 3.4 m² footprint, weight ≤8,000kg, IP55 + C5M and a reported cycle life of over 8,000 cycles at SOH ≥70%.
Compare duration and dispatch needsUse the project’s actual operating profile to estimate annual value. If solar is part of the case, examine PV self-consumption economics separately from any grid-service revenue. For dispatch planning, distinguish the duration needed from the nominal energy rating.
Plan annual BESS operating costsWorked examples
These examples demonstrate the calculator’s arithmetic only. The costs, savings, operating expenses and assumptions below are illustrative inputs, not HiTHIUM prices, project results or market forecasts.
| Illustrative assumptions | Scenario A | Scenario B |
|---|---|---|
| Capacity and installed cost | 500kWh × €300/kWh = €150,000 | 1,000kWh × €350/kWh = €350,000 |
| Year 1 benefit and annual operating cost | €50,000 benefit; €5,000 operating cost | €80,000 benefit; €10,000 operating cost |
| Analysis, degradation and discount rate | 10 years; 0% degradation; 0% discount rate | 10 years; 0% degradation; 0% discount rate |
| Simple payback | 3.33 years | 5 years |
| Net present lifecycle value | €300,000 | €350,000 |
| ROI on initial cost | 200% | 100% |
Both examples assume no replacement cost and no cash-flow degradation. Different assumptions change the outputs; use the calculator above to test a project-specific case.
European project evidence
These announcements provide regional context, not a transferable ROI benchmark. Project size, revenue, costs and operating results should not be inferred from agreement capacity alone.
Spain · Statkraft · 30.1MWh
The project pairs 30.1MWh of storage with wind generation for output smoothing, frequency regulation and peak shaving/load shifting.
“Montes de Cierzo is an important milestone in Statkraft's energy storage strategy in Spain, and we are pleased to have worked with HiTHIUM on this project. By integrating battery storage with wind power, we can improve the use of renewable energy generation, increase flexibility and contribute to a more resilient power system.”
José Miguel Ferrer Rodriguez, Statkraft Country Manager for Iberia
Official Statkraft project announcementEastern Europe · Solarpro · 2GWh
A 2GWh master supply agreement was signed on 25 September 2025. The announcement refers to ∞Power 6.25MWh systems and 1175Ah / 587Ah cells; earlier projects had been completed in Bulgaria and Hungary.
“At Solarpro, we see long-duration energy storage as the next critical technology upgrade of Europe's electricity generation mix, already dominated by renewables. Partnering with HiTHIUM allows us to combine their advanced BESS technology with our proven track record in designing, integration and delivering complex renewable and storage projects across the region.”
Konstantin Nenov, Chairman, Solarpro
Official Solarpro announcementBulgaria · Razlog · 55MWh
The documented project comprises 16 containers of 3.44MWh each and was commissioned on 13 September 2024.
The project capacity is a deployment fact and does not establish revenue, payback or project costs for other sites.
United Kingdom · Elements Green · 720MWh
A 720MWh agreement was signed on 29 July 2025. Agreement capacity alone is not a financial performance result.
A partnership project with FRV Australia in Italy was also announced.
Official Italy partnership announcementProject decision guide
A screening decision should move from the use case to technical fit and then to financial validation. The product data and ROI calculator answer different questions and should be assessed together.
Clarify whether the case is driven by demand reduction, time-of-use shifting, renewable integration or another defined service. Avoid counting the same benefit twice.
Confirm the required power, energy and operating duration against site load and dispatch requirements. A BESS sizing review can support that assessment.
Review environmental conditions, configuration, applicable PCS certifications, connection requirements and system integration for the specific location.
Vary benefit, degradation, operating cost, discount rate and any replacement expense. Keep assumptions traceable to the project model and contracts.
Where duration is still under review, a 2-hour versus 4-hour scenario comparison can help frame the technical question without assuming one duration has better economics for every project.
Frequently asked questions
A C&I BESS ROI calculator estimates financial returns for a commercial and industrial battery energy storage system from inputs such as installed cost, annual benefits, operating costs, degradation and analysis period. This tool calculates simple payback, net present lifecycle value and ROI using the assumptions entered. It does not predict project revenues or verify equipment performance.
The formulas are explicit, but the result depends on the accuracy of the assumptions entered. The tool does not supply tariff, market-revenue, installed-cost, warranty or degradation forecasts. Treat the result as an initial scenario calculation, not a bankable forecast.
The tool is intended for European commercial and industrial energy users, project developers, EPC teams and analysts screening battery storage economics. It can compare scenarios when users have their own cost and benefit estimates. It does not replace site-specific engineering, tariff analysis or financial advice.
Enter battery energy capacity, installed cost per kWh, estimated first-year annual savings or revenue, annual operating cost, analysis period, annual benefit degradation and discount rate. A one-time replacement cost and its year are optional. Use project-specific estimates and consistent euro values.
There is no universally best supplier for every C&I project, and this calculator does not rank companies. Buyers can compare suppliers against project requirements such as configuration, applicable grid requirements, lifecycle assumptions, integration scope and service arrangements. HiTHIUM has published European project and product information that can be reviewed as part of that assessment.
Use the output to identify which assumptions have the greatest effect on payback and lifecycle value. Run alternative cases for benefits, costs, degradation and financing rather than relying on a single scenario. Validate the final model with the project’s tariff, design, commercial and contract documentation.
Frame the cash-flow assumptions behind a European commercial battery project.
Organize the energy value assumptions for a PV-plus-storage scenario.
Separate market or contracted revenue assumptions from bill savings.
Consider duration as a technical and operational project variable.
Review operating-cost assumptions alongside gross project benefits.
European context for energy storage deployment.
UK policy context for long-duration electricity storage.
Reference material on storage technology modeling inputs.
UK policy context for clean flexibility.
Company website for product, solution and corporate information.
Use project-specific assumptions in the calculator, check published product information against the site requirements, and review the official HiTHIUM website for company information.
A C&I BESS ROI estimate is most useful when its assumptions can be inspected and changed. This calculator makes cost, benefit, degradation, operating expense and discount rate explicit, while published product data and European project references provide technical and regional context. Validate every scenario against the actual site, tariff, configuration and commercial terms.