Lithium iron phosphate (LFP)
Safer chemistry, better cycle life, lower fire risk. Standard across our commercial fleet for indoor and outdoor cabinets.
Energy Storage Solutions
Battery storage that pays for itself on the demand charges alone.
Under California's NEM 3.0, solar-only projects no longer pencil the way they did. Storage changes the math: it shifts solar production into peak windows, flattens demand charges, and keeps critical loads running through outages. We size every battery to your interval data, not a catalog spec.
- NEM 3.0 Peak-window shifting
- UL 9540A Safety-listed systems
- 4 hr Typical discharge
- PSPS Outage ride-through
Why Energy Storage Solutions matter for California businesses.
California has the most aggressive commercial demand-charge structures in the United States. Storage is the single most effective lever to flatten those bills: it discharges into your peak window and eliminates the highest demand-rate tier. Paired with solar, it also gives you genuine resiliency during PSPS events — something a standalone solar array cannot deliver.
What we deliver
Inside our energy storage solutions scope.
UL 9540A-listed systems
Every system passes UL 9540A thermal-runaway testing. Required by most California fire authorities for commercial battery installations.
Sized for NEM 3.0
We size capacity and discharge duration to move solar production into evening peak windows, where self-consumed energy is worth far more than exported energy.
Demand-charge reduction modeling
We pull your 15-minute interval data and model the exact demand-charge offset before you sign. No "typical case" hand-waving.
PSPS / outage ride-through
Critical-load panels and inverter-paired storage allow the site to island during grid outages. Configurable backup duration based on which loads you must keep alive.
AC- or DC-coupled with the array
We pick the topology based on your existing solar (if any), your discharge windows and your inverter sizing. Either path, one warranty.
Technical specs
The numbers behind the design.
- Chemistry
- LFP (lithium iron phosphate)
- Capacity
- 50 kWh – 4 MWh per project
- Discharge duration
- 2 hr / 4 hr / 6 hr standard
- Round-trip efficiency
- ~88% AC-AC
- Safety listing
- UL 9540A; UL 9540 system listing
- Cycle warranty
- 10 years / 6,000 cycles standard
- Topology
- AC- or DC-coupled; islanding capable
- Telemetry
- Modbus TCP, OpenADR 2.0b, REST API
How it works
From assessment to commissioned system.
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1
Interval data analysis
We need 12 months of 15-minute interval data. From it we model your demand peaks, your tariff structure and your real demand-charge exposure.
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2
Sizing + dispatch modeling
We size the battery to maximize $/kWh of demand-charge reduction. The proposal shows the trade-off curve, not just one option.
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3
Permit + interconnect
Battery permits go through both the local building department and the fire authority. We file all of it and coordinate utility interconnection for export-capable systems.
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4
Commission + tune
We commission the battery, validate the dispatch logic against the actual load profile, and re-tune the schedule after the first month of real data.
Frequently asked
Common questions, straight answers.
How big a battery do I need?
Battery sizing is driven by your demand-charge structure, not your kWh consumption. Most of our commercial projects fall between 100 kWh and 1 MWh, with 4-hour discharge being the sweet spot for most commercial demand-charge profiles.
Will the battery let me ride through a PSPS or grid outage?
Yes — with the right configuration. We add a critical-load panel that the battery can island, and you choose which loads must stay alive. Run-time depends on battery sizing vs. the critical-load profile.
Is lithium-ion safe to install at a commercial site?
Modern LFP chemistry plus UL 9540A-listed systems make commercial battery installations as safe as any other major electrical equipment. We comply with NFPA 855 spacing, and most California fire authorities have a clear submittal pathway.
Can I add storage to an existing solar array?
Almost always, yes. We typically AC-couple a battery to an existing string-inverter array, regardless of when the solar was installed.
Does NEM 3.0 hurt my solar economics?
NEM 3.0 dramatically reduces the value of exported solar. Storage solves that by self-consuming production into evening peak windows, where the avoided cost is much higher than the export rate. Almost every new commercial project we design is solar-plus-storage.
What is the typical payback for storage?
When sized for demand-charge reduction, most commercial storage projects pay back in 5–7 years and deliver 12–20%+ IRR over a 15-year horizon. We show the full sensitivity curve before you sign.
Get started
See the numbers on your property — no obligation.
A free custom report includes a cost savings estimate, a 30-year cash-flow model with ITC and MACRS, and a structural fit-check based on your parking layout. Or skip ahead and book a 30-minute call with our California-based team.
- Instant report
- No obligation, no sales pressure
- California-based, statewide reach