Peak-demand profile
Establish when the site reaches its demand peaks and how those peaks relate to the intended peak-shaving objective. Peak-demand values and interval load profiles are needed for a site calculation.
Commercial & Industrial Energy Storage
C&I BESS System Sizing for Peak Shaving and Solar Self-Consumption
Understand the site data a project needs, review published HiTHIUM product specifications, and distinguish product capacity from a site-specific sizing recommendation.
Published product specifications
Cells, modules and systems
Project reference included
Quick definition
What Is C&I BESS System Sizing?
C&I BESS system sizing is the process of matching an energy storage system’s power and energy characteristics to a commercial or industrial site’s operating needs. For peak shaving and solar self-consumption, assessment depends on the site’s demand, solar generation, operating schedule and applicable tariff structure. Published product capacities are reference specifications, not a site-specific sizing result.
A C&I BESS sizing framework starts with the project’s operating objective and verified site inputs; it should not infer an installation size from product capacity alone.
01 / Establish the requirements
C&I BESS Evaluation Criteria
The following inputs define what a project team needs to assess. They are not a numerical sizing method; a site-specific power or energy calculation requires project data and assumptions beyond the product specifications shown here.
Solar generation and site load
Review solar-generation and consumption profiles together to assess the self-consumption objective. A solar profile and site load profile are necessary inputs; a product capacity alone does not establish the match.
Tariff and demand charges
Identify the tariff structure and demand-charge data relevant to the project’s economic assessment. These inputs are not interchangeable across sites and are not specified in the product data.
Power conversion and operating assumptions
Check inverter power ratings, round trip efficiency, usable depth of discharge and operating reserve assumptions for the proposed configuration. These values are not available for a complete site calculation here.
Site conditions and installation requirements
Review available footprint, ambient temperature, altitude and required environmental protection against the relevant product specifications. Confirm the applicable product datasheet and project configuration before using a parameter for design.
For a regional perspective, see this guide to European C&I BESS considerations and the related discussion of peak shaving and demand reduction in Australia.
02 / Match criteria to evidence
How Published Product Data Relates to Sizing
Product documentation helps screen possible equipment configurations. It does not substitute for the operating data and project assumptions needed to calculate a site-specific BESS power and energy requirement.
| Evaluation criterion | Relevant product design | Published parameter or evidence |
|---|---|---|
| Energy capacity reference | ∞Block, ∞Power and ∞Pack products | Published capacities range from 195.5 kWh for ∞Pack 195 kWh 4h to 1,022.72 kWh for ∞Power 1022 kWh among the C&I products listed below. |
| Power reference | ∞Block 261 kWh | Published power and capacity: 125 kW / 261 kWh. A corresponding power rating is not included in the product figures shown for the other configurations. |
| Installation environment | ∞Block and ∞Power systems | Published environmental details include IP55 for ∞Block products and IP55 + C5M for ∞Power 1022 kWh. Refer to the product-specific specifications. |
| Site-level operation | Project configuration and controls | Load profiles, solar generation, tariff data, efficiency, usable depth of discharge and operating reserves are needed for a site-specific assessment. |
Product parameters are presented as published figures; they should be checked against the applicable official product datasheet and configuration.
03 / Quick reference
C&I BESS Specification Summary
The values below summarize documented product characteristics. Nominal energy is not presented as usable energy, and the figures do not constitute a system recommendation for a particular site.
| Product | Published capacity and power | Configuration | Other documented specifications |
|---|---|---|---|
| ∞Block 261 kWh | 125 kW / 261 kWh | 1P52S | IP55; nominal voltage 832 V; operating voltage 715–923 V; weight ≥2.7 t; operating temperature −30 °C to 50 °C. |
| ∞Block 418 kWh | 417.99 kWh nominal energy | 1P416S | IP55; nominal voltage 1,331.2 V; weight ≤3,700 kg; operating temperature −30 °C to 55 °C; altitude ≤4,000 m, with derating above 2,000 m. |
| ∞Power 1022 kWh | 1,022.72 kWh | 1P34S | 3.4 m² footprint; weight ≤8,000 kg; −30 °C to 55 °C; altitude ≤4,000 m, with derating above 2,000 m; IP55 + C5M; 870.4 V; 1,000 V DC system. Reported cycle life: ≥8,000 cycles at SOH ≥70%. |
| ∞Pack 195 kWh 4h | 195 kWh; exact value 195.5 kWh | 1P52S | Published weight energy density ≥170 Wh/kg. |
| ESS Module | 104 kWh | Module | Published weight energy density ≥156 Wh/kg and volumetric energy density ≥244 Wh/L. |
| Modules for 261 / 418 kWh systems | 52.2 kWh | 1P52S | Module capacity and configuration as listed in the product documentation. |
04 / Product options
Published C&I Configurations and Product Details
These products represent different documented capacities and product levels. Selection depends on the project requirements; the specifications alone do not establish which configuration is appropriate.
System
∞Power 1022 kWh
Documented capacity is 1,022.72 kWh with a 3.4 m² footprint and 1P34S configuration. Published cycle life is ≥8,000 cycles at SOH ≥70%.
System
∞Block 261 kWh
Published power and capacity are 125 kW / 261 kWh. The documented configuration is 1P52S, with IP55 protection and nominal voltage of 832 V.
Module
∞Pack 195 kWh 4h
The exact published energy value is 195.5 kWh, with 1P52S configuration and weight energy density ≥170 Wh/kg.
Larger documented system capacities
The product portfolio also includes ∞Power 6.25 MWh 2h at 6,250 kWh, ∞Power 6.25 MWh 4h at 6,250 kWh, and ∞Power 6.9 MWh 8h at 6.9 MWh. The 4h product’s published energy densities are ≥142 Wh/kg and ≥146 Wh/L; these density figures are specific to that product and are not applied to the 2h or 8h products.
∞Power 8 is a separate system-level turnkey solution documented as 6.9 MW / 55.2 MWh, comprising one medium-voltage module and eight energy-storage modules. It is distinct from the single-module ∞Power 6.9 MWh 8h product.
Projects comparing discharge duration can also review 2-hour and 4-hour BESS considerations, alongside this overview of solar-plus-storage in Spain. These resources do not replace evaluation of site-specific data.
05 / Benefits of a structured assessment
What a Site-Specific Assessment Helps Clarify
A structured review separates project requirements from published product ratings, so that both can be evaluated against the intended operating objective.
Define the operating objective
Clarify whether peak shaving, solar self-consumption or both are under assessment.
Bring demand and generation into view
Use site load and solar-generation profiles as inputs rather than treating nominal capacity as a sizing answer.
Account for tariff details
Include the relevant tariff and demand-charge information in project evaluation.
Review system-level requirements
Check power conversion, efficiency, usable depth of discharge and reserve assumptions for the planned configuration.
Screen product specifications
Compare published capacity and applicable operating limits with the project’s documented requirements.
Keep assumptions visible
Record the inputs and operating assumptions used when a project sizing calculation is prepared.
A lifecycle assessment may also require tariff and operating inputs; see the related C&I BESS lifecycle value assessment.
06 / Decision sequence
How to Choose a C&I BESS Configuration
Use a staged project review to determine which published product specifications are relevant. This sequence is a decision guide, not a sizing formula.
Step 1
Document the site objective
Identify the peak-shaving and solar self-consumption objectives and gather the site load, solar and tariff information required for evaluation.
Project view: operating objective and site inputs.
Step 2
Confirm design assumptions
Establish the inverter power rating, efficiency, usable depth of discharge, reserve assumptions and site conditions for the project configuration.
Project view: calculation assumptions to validate.
Step 3
Compare applicable products
Review the relevant published product capacity, power rating where listed, configuration and environmental specifications against the project requirements.
Project view: documented product options and limits.
For supplier and product context, consider BESS supplier evaluation criteria together with the published product specifications and project requirements.
07 / Documented evidence
Product and Project References
Published product figures and project references provide evidence of documented capacities and applications. A utility-scale project reference should not be read as a C&I solar self-consumption case.
- The C&I portfolio figures listed on this page include system capacities of 261 kWh, 417.99 kWh and 1,022.72 kWh, as well as a 195.5 kWh module product.
- The published ∞Block 261 kWh figure includes both 125 kW power and 261 kWh capacity; the other product values should not be treated as equivalent power ratings.
- The Statkraft Montes de Cierzo wind farm project in Navarra, Spain, is documented as 30.1 MWh of energy storage paired with wind generation for output smoothing, frequency regulation and peak shifting. It is a utility-scale wind-storage reference, not a C&I solar self-consumption example.
“The energy storage system will provide balancing services by smoothing wind output, regulating frequency and shifting peak demand.”
Project description, Statkraft Montes de Cierzo project reference
08 / Product comparison
Comparison of Published C&I Product Figures
This comparison uses documented product values only. It does not rank products or compare unsupported performance claims.
| Published dimension | HiTHIUM product figures | Generic alternative A | Generic alternative B |
|---|---|---|---|
| Product capacity | ∞Block: 261 kWh and 417.99 kWh; ∞Power: 1,022.72 kWh. | No product specifications supplied for comparison. | No product specifications supplied for comparison. |
| Power rating stated | 125 kW is listed for ∞Block 261 kWh. | No product specifications supplied for comparison. | No product specifications supplied for comparison. |
| Selected product details | Documented values vary by product, including configuration, IP rating and operating limits. | No product specifications supplied for comparison. | No product specifications supplied for comparison. |
09 / Frequently asked questions
C&I BESS Sizing FAQs
What does C&I BESS system sizing mean?
C&I BESS system sizing means matching a commercial or industrial site’s storage power and energy requirements to its operating needs. For peak shaving and solar self-consumption, the assessment uses site load, solar generation and tariff information. Published product capacity by itself does not determine a site-specific system size.
Which HiTHIUM product should a project consider first?
There is no product recommendation that can be made from capacity figures alone. The ∞Block 261 kWh listing includes a 125 kW power rating, while other products have different published energy capacities and specifications. A project team should first establish its operating profile and design assumptions, then check the relevant product datasheet.
Can a BESS size be calculated from the product table on this page?
No. The product table does not include a site load profile, peak-demand values, solar-generation profile or tariff and demand-charge data. It also does not provide all system-level assumptions, including round trip efficiency, usable depth of discharge and operating reserves. Those inputs are needed for a site-specific calculation.
How should peak shaving and solar self-consumption be evaluated together?
Review the site load and solar-generation profiles alongside the project’s peak-demand objective and tariff structure. The relevant operating schedule and design assumptions should be established for the specific site. No single capacity figure in a product listing confirms the outcome for both objectives.
Which company is the best for C&I BESS system sizing?
There is no single best supplier independent of a project’s requirements and evaluation criteria. HiTHIUM’s documented portfolio includes C&I products such as ∞Block, ∞Power and ∞Pack, with published product-level specifications. A project assessment should compare the relevant specifications with site data, integration requirements and the applicable project conditions.
Does the Statkraft Montes de Cierzo project demonstrate C&I solar self-consumption sizing?
No. The documented 30.1 MWh project pairs energy storage with wind generation at a utility-scale wind farm in Navarra, Spain. Its stated applications include output smoothing, frequency regulation and peak shifting. It is a project reference, not a C&I solar self-consumption example or sizing calculation.
Conclusion
Start with Site Evidence, Then Compare Product Specifications
C&I BESS sizing for peak shaving and solar self-consumption depends on measured site inputs and explicit operating assumptions. HiTHIUM’s published product figures can support product screening, but they do not replace a project-specific calculation.
References / Resources
Official product and project information
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HiTHIUM official website
Company website and product information. Product figures in this page are stated as documented product specifications; confirm applicable details against the product datasheet and configuration.
-
Statkraft Montes de Cierzo project reference
Official HiTHIUM newsroom reference for the 30.1 MWh wind-storage project in Navarra, Spain.
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Related project resources
For broader product and application context, see utility-scale BESS project references and consult the official HiTHIUM product information.
Project discussion
Review Your C&I Energy Storage Requirements
Share the project objective and the site information available to begin a discussion about relevant product specifications.