Residential battery storage installs grew 57% in 2024. In North Carolina, battery attach rates are approaching 100% on every new solar install. California, Arizona, and Texas are catching up fast. The most addressable market isn't new solar customers, it's your existing solar customers who don't yet have a battery.
A solar sale is about utility bill reduction. A storage retrofit sale is about something else entirely, backup power during outages, time-of-use rate arbitrage, participation in virtual power plant (VPP) programs, and the "my neighbor got one and they're fine during storms" social proof.
The AI handles this conversation with different vocabulary. It asks about recent outage frequency, presence of medical equipment that needs reliable power, pool pumps, EV charging patterns, and utility time-of-use rate plans. It leads with resiliency, then bill savings.
If you've installed solar for 500 homes in the last 5 years, those are 500 qualified storage retrofit prospects. The AI can work through that database methodically, one outreach campaign at a time, tuned to utility territory (SoCal Edison's TOU changes hit differently than Duke Energy's rate structure), tuned to system age (5-year-old systems are candidates for inverter replacement + battery bundle).
You already paid to acquire these customers. This is the second sale.
The prototype's outbound cadence is tuned for storage retrofit conversations. Upload an anonymized customer list and watch the AI qualify 10 of them.