We’ve heard the skepticism, but we can build you a battery proposal with a payback period that closes.
The ROI works when you have the right tools. We give you two: simulation-based proposal generation that proves the math, and optimized control that keeps the batteries profitable over time.
Why Sponge Works
Battery Proposal Studio
Upload your customer’s Green Button data. Upload solar production data. Use intelligent simulation to find the battery size that maximizes returns. Export core project metrics — payback period, annual bill reduction, cumulative savings, ROI — into a trustworthy proposal that closes deals.
The proposal closes the deal. The Sponge EMC protects it.
Once the battery is in the ground, our EMaaS engine takes over — adapting dispatch to rate changes, load shifts, and grid conditions. OEM controllers set one protocol and never change. Ours adapts constantly to the environment. The delta averages 40% more in annual savings, protected by a strategy that changes and grows with the facility.
Learn more about our optimization licensing →The Latest Use Cases
Proposal Simulation
Agricultural Net Meter Retrofit
Battery Size
432 kWh
Payback Period
6.4 years
Bill Reduction
72%
Annual Savings
$22,300
Proposal Simulation
Powder Coat Paint Factory
Battery Size
522 kWh
Payback Period
5.4 years
Bill Reduction
54%
Annual Savings
$53,798
Proposal Simulation
StoneCutting Facility
Battery Size
265 kWh
Payback Period
4.5 years
Bill Reduction
51%
Annual Savings
$44,146
Works with the tools you know
And many more…
The proposal closes the deal. The optimizer earns it back.
Once the battery is in the ground, our EMaaS engine takes over — adapting dispatch to rate changes, load shifts, and grid conditions. Static controllers hold one position. Ours moves with the market. The difference averages 40% more in annual savings. That’s what keeps the payback period honest.
Learn more about our optimization licensing →