Free Solar Business Tools
Calculators Built for Solar Sales Orgs & Installers
Eighteen free tools for the decisions a fulfillment business actually makes: working capital, dealer margins and proceeds by funding product, commission and headcount planning, funnel and fallout economics, adder pricing, subcontract rates, and permit, PTO, and funding readiness. No signup required.
Direct Pay Working Capital Calculator
See exactly how much capital your sales org ties up in materials every month, and what $0 upfront through Direct Pay frees up.
Open calculator →
Solar Dealer Margin Calculator
Enter system price, install cost, and dealer fee to see your gross margin per deal, monthly revenue, and annual earnings projection.
Open calculator →
Solar Project Timeline Estimator
Estimate weeks from signed deal to PTO by state, permit jurisdiction, HOA status, and financing type, with a milestone breakdown.
Open calculator →
Solar Financing Type Selector
Answer 4 questions about a homeowner and get a recommended financing product (TPO, loan, or sell-on-paper) with the right lenders from Seamless Home's network.
Open calculator →
Installer Revenue & Capacity Calculator
Enter crew count, installs per week, and current utilization to see your monthly revenue, full-capacity potential, and how much deal flow you could absorb.
Open calculator →
In-House vs. Outsourced Fulfillment Calculator
Price the fulfillment stack both ways, fixed overhead plus materials capital against a flat per-deal fee, and find the installed volume where the answer flips.
Open calculator →
Solar Sales Commission Calculator
Model the same deal under all three structures, per-watt redline, % of gross margin, and flat per deal, and see what it pays the rep and what it leaves the org.
Open calculator →
Solar Permit Package Checklist
Score a project's permit readiness across intake, drawings, calculations, and submission, with blocking items separated from the ones that just draw a correction notice.
Open calculator →
PTO & Interconnection Checklist
Two approval chains gate Permission to Operate, the utility's and the jurisdiction's. Score where a project stands and find the unowned handoff that is holding it.
Open calculator →
Funding Packet Checklist
Funding gets rejected for paperwork, not bad deals. Check credit validity, executed docs, install evidence, and final-draw items, gated by the draw you're claiming.
Open calculator →
Solar Sales Funnel Calculator
Doors to installs with every stage rate exposed: plus which stage is worth the most per point, and where you're actually leaking the most volume.
Open calculator →
Deal Fallout Cost Calculator
A cancellation isn't one number. Price what a dead deal costs at each stage, and see the effective margin per install once fallout is spread across the survivors.
Open calculator →
Solar Adder Margin Calculator
Panel upgrades, reroofs, trenching, batteries, critter guard. Price each against your real cost and find which adders make money and which you're giving away.
Open calculator →
TPO vs Loan vs Cash, Dealer Proceeds
Same system, three funding paths, three different numbers landing in your account. Compare proceeds after dealer fee, build cost, and commission.
Open calculator →
Solar Rep Ramp & Headcount Planner
Target ÷ installs per rep is the wrong answer. Model ramp, attrition, and the headcount ceiling your hire rate can actually sustain, plus the cash trough.
Open calculator →
Install Subcontract Rate Calculator
Does the per-watt rate work for the crew? Break it into loaded labour, mobilization, overhead, and rework, then see what retention and payment terms really cost.
Open calculator →
Solar Warranty Coverage Checker
One system, seven separate promises, seven counterparties. See which layers are still in term, and which quietly depend on a contractor still being in business.
Open calculator →
HVAC & Roofing Expansion Calculator
You already paid to acquire the customer. Model what a second service is worth at your attach rate, and the rate below which building it in-house doesn't pay.
Open calculator →
Installer Vetting Scorecard
Six domains decide whether a partner is safe to route volume to: licence and entity, insurance, bonding, capacity, warranty and financial durability. Score all of them.
Open calculator →
Notice to Proceed Readiness Checker
Four gates stand between a signed deal and a scheduled install. Find the specific blocker, deals do not age at this gate for big reasons.
Open calculator →
Project Responsibility Matrix
Assign all 25 project tasks to the sales org, fulfillment partner, installer or homeowner, and surface the handoffs both sides assume the other is handling.
Open calculator →
Solar Cash Conversion Cycle Calculator
The days between paying for a deal and being paid for it. Model the gap across materials, labour and milestone draws, and see what it ties up at your volume.
Open calculator →
Subcontract Agreement Review Checklist
Read an install subcontract against 28 clauses, marking each Covered, Unclear or Silent. Silence is the finding a read-through never records.
Open calculator →
Built for the B2B side of solar
These tools are designed for solar sales organizations, installers, and EPCs, not homeowners. Every calculator maps to a real decision your business faces: how much capital to deploy, which financing product to offer, whether your crews have capacity for more deal flow.
Informational use only, please verify before you rely on it
This applies to every calculator on this page. Each one is a planning aid, not a quote, a credit decision, or a substitute for professional advice.
This tool is provided for general informational and educational purposes only. Its output is an illustrative estimate generated from the values you enter and from general assumptions that will not match every deal, market, lender, or homeowner. It is not tax, legal, accounting, financial, or professional advice, and it is not a quote, an offer, a credit decision, or a guarantee of pricing, approval, timing, savings, or eligibility.
You are solely responsible for independently confirming all information presented here including any figures, rates, fees, margins, timelines, tax treatment, and federal, state, local, or utility incentives, with the applicable lender, authority having jurisdiction, and your own qualified tax, legal, and financial advisors before acting on it, relying on it, or presenting it to a homeowner or any third party. Incentive programs, lender terms, and permitting requirements change frequently and vary by jurisdiction.
Seamless Home is not a tax advisor, law firm, lender, or licensed installing contractor, and makes no representation or warranty as to the accuracy, completeness, or currency of the information produced by this tool. To the fullest extent permitted by law, Seamless Home accepts no liability for any decision made or action taken in reliance on it.
Explore our solutions
Solutions for solar sales organizations
Close the deal: Seamless Home handles financing, installers, and fulfillment.
Learn more →Multi-lender solar financing
Offer TPO, loan, and sell-on-our-paper options across a network of lenders.
Learn more →Solar dealer program
How to sell solar without installing: financing, materials, and crews handled.
Learn more →Ready to put the back office on autopilot?
Seamless Home handles financing, installer connections, materials, and project management, so your org can close more deals without building more overhead.
Get In Touch