NO COMMISSION · NOTHING SOLD
Is a battery worth it at your site?
An independent, measured feasibility read for Illinois commercial sites. We reconstruct your real demand structure from your own ComEd interval data, size what storage could actually cut against it, and set that beside the current Illinois incentives. You get a written answer built on measurement, not a sales projection, including when the honest answer is that a battery does not pencil.
$500 flat, one-time. We do not sell batteries or take an installer's commission, so no one is paying us to reach a conclusion. Start with the free demand-charge check below; it credits toward your read.
Listed in ComEd's Connect My Data directory
WHAT IT IS BUILT ON
Your measured demand structure, to the cent.
A battery only pays when it can cut the demand charge, and that turns on the shape of your peaks: the exact half hours that set the charge, which months a battery could shave, and which it never could. Your read is built on this measured foundation, reconstructed from your own ComEd data, not a projection. Here it is on an example account.
Example, on a real anonymized ComEd commercial account
1 meter (site-coincident), Jul 23, 2025 to Aug 21, 2025. Demand charge $3,619.13: billed peak 242.57 kW at Jul 23, 2025, 2:00 PM, 242.57 kW × $14.92/kW. Reconciled to bill.
Every number carries its source
Each figure is a claim with a provenance badge, and links to the chart that proves it. Nothing here is asserted without its evidence.
The site-coincident on-peak demand that set the charge, 9 AM to 6 PM.
Billed peak times the reconstructed delivery rate ($14.92/kW), reconciled to the bill.
Average demand as a share of the period peak. Higher is flatter; lower is peakier.
Mean site-coincident draw across the whole billing period.
Your report is built the same way, from your own ComEd data: the exact half hour that set your demand charge, every charge traced to the tariff, and where your bill and your meter disagree.
$500 flat, one-time. The free demand-charge check below credits toward it.
HOW IT WORKS
Send us a recent ComEd bill and your interval data export. No hardware, nothing to install.
Phantom Grid reconstructs your real demand structure from that data and sizes what storage could cut against it, set beside the current Illinois incentives.
Receive a written feasibility read: whether a battery pencils at your site, the measured demand savings behind the number, and an honest no if it does not.