How do you shorten solar sale-to-install time?
Most of the time from sale to install is lost to waiting and rework between steps, not the install itself. Shorten it by sending complete deals forward, giving every permit and interconnection step an owner, and handing off clean packages.
The problem: early weeks decide the deal
Your homeowner signed. Now they wait. NREL's 2022 study of residential solar contract cancellations looked at four medium-to-large US installers (199,665 residential PV-only contracts of 10 kW or less, 2017–2019). It found that 51% of those contracts did not result in an installed PV system (the median installer rate was 33%), and that 73% of contract cancellations happened before permit and/or approval-to-build interconnection applications were submitted. In that data, the early stretch is where most deals were lost.
Where the time goes
| Stage | Who controls it | Common time sink |
|---|---|---|
| Sale to deal review | Your team | Missing photos, documents, or mismatched details |
| Site survey and design | Your team | Redesigns from facts missed at sale |
| Permit and interconnection | AHJ and utility, plus your follow-up | Steps with no owner and no next check |
| Scheduling and install | Your team | Incomplete handoff packages |
| Inspection and PTO | AHJ and utility | Corrections and resubmissions |
A sale-to-install plan your team controls
- 01
Review every deal before survey.
Start with solar deal review and its minimum intake list.
- 02
Stop redesigns at the source.
- 03
Give every permit and utility step an owner and a date.
- 04
Measure each stage.
Track days per stage and cancellations by stage, not one blended number.
How Mass AI helps
Sunny by Mass AI is the AI employee that gets every solar deal reviewed and ready. It reviews each deal in under 5 minutes per deal, follows up with the rep until the file is complete, and brings your ops team only the calls that need a person. Your ops team approves the exact package before any handoff, and Sunny by Mass AI independently verifies that it arrived. Meet Sunny by Mass AI.
FAQ
How long does it take from sale to install for residential solar?
It varies by jurisdiction and utility. Much of the time goes to design, permitting, and interconnection, plus any rework between them.
Why do solar customers cancel before install?
NREL's 2022 study found no single driver: customer decisions, experiences, and finances, the cost/benefit proposition, and the permitting process all likely play a role. In its data from four medium-to-large US installers (199,665 residential PV-only contracts of 10 kW or less, 2017–2019), 73% of contract cancellations happened before permit and/or approval-to-build interconnection applications were submitted.
How common are residential solar cancellations?
In NREL's 2022 study of four medium-to-large US installers (199,665 residential PV-only contracts of 10 kW or less, 2017–2019), 51% of contracts did not result in an installed PV system, and the median installer cancellation rate was 33%. NREL notes smaller installers have typically reported lower cancellation rates.
How do I shorten sale-to-install time?
Remove rework and waiting between steps: review every deal before survey, give each permit and interconnection step an owner and a next check date, and hand off complete packages.
Where does Mass AI fit?
At the first gate. Sunny by Mass AI reviews each sold deal in under 5 minutes per deal so complete files move to survey, design, and permitting. Mass AI works with the tools your team already uses, confirmed during setup.
Start with clean deals
Your team runs the project. Sunny by Mass AI gets every deal ready first.