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A reconciliation engine that sits beside the existing system, reads what it already produces, and closes invoicing. Aimed at solar owner-operators, surfacing the exposure nobody has priced.
In short: Invoice Engine for Solar, Run by Reconciliation is a reconciliation engine aimed at solar owner-operators, covering invoicing. It scores 70/100 on AltF Ideas, carried by feasibility (89) and held back by demand (53). Typical pricing is $2.4k–$49k per customer per year, with a first version reachable in a weekend for $2.5k–$8.0k.
Solar teams lose invoices assembled from four systems by hand. A typical solar operation runs this on people, memory, and a shared spreadsheet. Whoever knows how it works becomes a single point of failure.
Invoicing handled by a reconciliation engine, with a human signing rather than writing. Revenue is usage-based, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $419M |
|---|---|
| Category growth (CAGR) | 27% |
| Annual contract value | $2.4k – $49k |
| Pricing model | Usage-based |
| Time to first revenue | 48 days |
| Startup cost to MVP | $2.5k – $8.0k |
| Build effort | Weekend |
Systems that never talked now expose APIs by default. Solar is growing at roughly 24% a year, and this job has not been re-tooled since it was designed around paper.
| Who | The gap |
|---|---|
| A vertical competitor | Priced and scoped for enterprise accounts, not this segment |
| The incumbent suite | Sells a platform; this job is one neglected module inside it |
| An internal hire | Works until volume doubles, then breaks again |
Every customer wants their own edge cases encoded, so onboarding cost is the real constraint.
An idea you cannot act on is entertainment. Four concrete steps, wired to tools already running on AltFTool.
Score problem urgency, willingness to pay, and reachable audience size before writing any code.
→ AltF IdeaLabAsk how they handle this today and what it costs them. If nobody can quantify the pain, the demand score is optimistic.
→ Survey BuilderCheck availability, DNS, and email authentication in one pass so your first outreach lands in an inbox.
→ AltF DomainOpsStand up intake, the review queue, and billing before you build the clever part.
→ AltF Flow