Updated October 27, 2026
Solar business software is not one product. An installer runs a design and proposal tool, a CRM that tracks each project from signed contract through permit, install, inspection and permission to operate, something for crews and service calls, accounting, and a phone that has to be answered while everyone is on a roof. This guide sorts the tools by the job they do and shows where most installers still lose deals.
Quick answer: Most solar installers need four kinds of software: a design and proposal tool (for example Aurora Solar, Solargraf or the free OpenSolar), a CRM and project tracker that follows each job through permitting, interconnection and permission to operate, a field service or O&M tool for crews and service calls, and accounting. The gap none of them fill is answering and booking new inquiries the moment they call.
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Search results for solar business software mix design platforms, CRMs and full ERPs, and most of the roundups are written by vendors ranking their own product first. It is easier to choose when you sort by job.
| Job | What the software does | Examples | Who needs it |
|---|---|---|---|
| Design and proposal | Roof model, panel layout, production estimate, financing options and a signed proposal | Aurora Solar, Solargraf, OpenSolar (says it is "100% free of charge" on its site, checked October 27, 2026) | Every installer that sells its own jobs |
| CRM and project tracking | Lead to contract, then site survey, permit, install, inspection, interconnection and permission to operate as stages | JobNimbus, Scoop Solar, a general CRM set up with solar stages | Anyone with more than a few jobs open at once |
| Permitting and interconnection | Applications to the utility and the town, status and documents | Utility portals, PowerClerk where your utility uses it | Every installer; the utility often decides the tool |
| Field service and O&M | Crew schedules, photos, checklists, service tickets and warranty calls | Field service apps, monitoring platforms from your inverter maker | Installers with crews and a growing installed base |
| Accounting | Invoices, deposits, financing payouts, job costing | QuickBooks, Xero | Everyone |
| The phone and inbox | Answer and qualify new inquiries, book site surveys, answer customer status questions | A receptionist, a call center, or Unmanually | Everyone, and it is the piece most often missing |
Solar inquiries are expensive to generate and easy to lose: a homeowner who fills in three quote forms books with whoever calls back first. The rates below are assumptions except where cited. Home-service businesses answer 52% of calls with a person, 38% of answered calls are leads and 45% of those leads convert on the call (Invoca, July 2026, all home services, not solar only).
| Step | Answer 52% of calls | Answer 90% of calls | Basis |
|---|---|---|---|
| Inquiries a month | 40 | 40 | Assumption |
| Reached by a person | 20.8 | 36 | 52% is Invoca’s home-services average; 90% is the target |
| Site surveys booked on the call (45%) | 9.4 | 16.2 | Invoca, leads that convert on the call |
| Systems sold (1 in 5 surveys) | 1.9 | 3.2 | Assumption |
| Revenue at $25,000 a system | $46,800 | $81,000 | Assumption |
On these assumptions the gap is about 1.4 systems and $34,200 in monthly revenue, from the same marketing spend. None of the design or CRM tools above close it; they start working after someone has booked the survey. Try your own numbers in the solar quote calculator.
Unmanually is a 24/7 AI Office Manager for solar installers that you run by voice. The AI Office Manager answers new inquiries while your crew is on a roof, asks your qualifying questions (homeowner, roof age, shade, average electric bill), books the site survey and sends the confirmation. It also answers "where is my install?" calls from what you have told it, sends invoices and chases deposits. See Unmanually for solar installers, and how to get solar leads without door knocking.
Usually a design and proposal tool, a CRM or project tracker with permitting and interconnection stages, a field service or monitoring tool for crews and service calls, and accounting software.
Yes. OpenSolar describes its software as 100% free of charge on its website (checked October 27, 2026). Paid tools such as Aurora Solar and Solargraf add features; test the proposal your customers will see before choosing.
The one that holds your real project stages: site survey, permit, install, inspection, interconnection and permission to operate, with dates and documents. Solar-specific CRMs have these built in; a general CRM can work if you set the stages up.
No. Design, CRM and field tools work after a survey is booked. Answering and booking new inquiries needs a person, a call service, or an AI Office Manager such as Unmanually.
Home service businesses answer only about half their calls (Invoca, July 2026), and owners spend about 11 to 16 hours/week on admin. Knowing what to do is the easy part; the money leaks out in the calls you can't take, the quotes nobody chases and the invoices that sit unpaid. Unmanually is a 24/7 AI Office Manager for solar installers that you run by voice from your phone:
Sources: Invoca, July 2026 (52% of home-service calls answered by a person, 60M+ calls); admin hours: Time etc / Censuswide 2023 and Amex SME Barometer 2026.
Unmanually is an AI Office Manager that works 24/7 and that you run by voice from your phone. Leave your mobile number and the AI Office Manager calls you right away, the same way it would call back one of your customers. That call is the demo: it answers, books you a 15-minute time with the founder and follows up.
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