Solar Proposal Software 2026: 7 Tools Compared

Solar proposal software lives or dies on one metric: close rate per hour of designer time. The best tools turn a finished design into a branded, interactive, e-signed proposal in five minutes flat. The worst tools force a copy-paste step that introduces drift between the engineering numbers and what the buyer signs. This guide compares the seven realistic solar proposal software options in 2026 and explains why we recommend SurgePV as the integrated pick.

• SurgePV produces a branded, interactive, e-signed proposal in 5 minutes from the same project as the design, in 9 languages.
• Pairing SurgePV with QuickEstimate handles the CRM side, with one-click hand-off.
• Book a free SurgePV demo and produce a real proposal on the call.

What Changed in Solar Proposal Software

Two shifts in the last 18 months reshaped this category.

Standalone proposal apps lost the integration battle. When the design tool produces the proposal natively, the proposal numbers cannot drift. Teams using a separate proposal app for years are consolidating onto integrated platforms like SurgePV to close that gap.

Interactive web proposals overtook PDFs for residential closing. Buyers under 50 prefer a shareable link with embedded visuals and a sign-here button to a 20-page PDF emailed as an attachment. PDFs are still required for filing and AHJ submission, but the lead artefact is now the web link.

How to Choose Solar Proposal Software (the 6-Point Framework)

SurgePV ticks all six. The integrated solar design platform wires the proposal output directly to the design canvas.

The 2026 Solar Proposal Software Comparison Table

The pattern: among the tools compared here, SurgePV is the one that is fully integrated, multi-language, and includes the engineering simulation in the same project.

1. SurgePV, the Integrated Pick

SurgePV’s branded solar proposal builder ships on every paid plan. The proposal is generated from the same project as the layout, 8,760-hour shade analysis, and bankable yield report, so the numbers are guaranteed to match.

Standard on every paid plan:

• White-label PDF, your logo, fonts, colours, optional custom domain
• Interactive web proposal with a shareable URL
• E-signature built in
• 9 languages: English, Spanish, Portuguese, German, Arabic, French, Turkish, Italian, Polish
• Cashflow, IRR, NPV, country tariff library
• Bankable yield embedded
• One-click handoff to CRM

Pricing: $1,299 to $1,899 per user per year, flat. No per-proposal fee, no add-on for design, no AI Mode upsell.

2. Aurora Sales Mode

Best for: Existing Aurora customers on the upper tier who already pay for Sales Mode. Strengths: Strong integration with Aurora Design Mode, mature US-residential templates. Weaknesses: Paid add-on on top of Aurora’s $159 to $259 per user per month base. US-skewed templates. SurgePV vs Aurora Sales Mode: Same integration model, lower per-seat cost, multi-language, no separate upsell. Full comparison in our Aurora Solar alternative guide.

3. Solargraf

Best for: Residential-only teams that want fast templated proposals. Strengths: Good-looking proposal templates, fast quote generation. Weaknesses: Owned by Enphase, shallower engineering than top picks, separate from most design tools. SurgePV vs Solargraf: Same proposal speed plus full engineering and hardware-neutrality in one license, detailed further in our Solargraf alternative guide.

4. Pylon

Best for: US residential teams that prioritise sales velocity. Strengths: Slick proposal output, fast residential workflow. Weaknesses: Limited engineering depth, light multi-country coverage, per-feature pricing. SurgePV vs Pylon: Full engineering plus the same proposal speed at flat pricing, as detailed in our Pylon alternative comparison.

5. Enact Solar

Best for: Residential installers wanting a proposal-first workflow with light design. Strengths: Clean residential proposals, decent CRM hooks. Weaknesses: English-only, US-leaning, weaker engineering depth. SurgePV vs Enact: Multi-language, bankable simulation depth, integrated design, covered further in our Enact Solar alternative guide.

6. OpenSolar Pro

Best for: OpenSolar users upgrading from free to access advanced proposal features. Strengths: Tied to OpenSolar design, residential focus. Weaknesses: Add-on pricing, limited interactive web output, weaker C&I support. SurgePV vs OpenSolar Pro: Flat pricing, full multi-segment design and proposal in one license, as detailed in our OpenSolar alternative comparison.

7. Sighten

Best for: Finance teams modelling PPA and lease structures. Strengths: Strong residential finance modelling. Weaknesses: No native design tool, US-focused, narrow scope. SurgePV vs Sighten: Full design plus finance plus proposal in one workflow.

Solar Proposal Tools vs Solar Sales Proposal Software vs Quoting Tools

The category gets three different names depending on who owns the budget, and the naming maps to a real difference in scope.

Solar proposal tools is the neutral term for anything that produces the customer-facing document. Some are standalone (Solargraf, Sighten), some are modules inside a design platform (SurgePV, Aurora Sales Mode).

Solar sales proposal software signals that the sales team, not engineering, is the buyer. The priorities shift: interactive web proposals, financing options rendered side by side, e-signature, and CRM sync matter more than simulation depth. Aurora Sales Mode and Pylon are built around this reading. SurgePV covers it without a second license, then hands the signed deal to QuickEstimate for pipeline management.

A fast solar quoting tool is the narrowest reading: get a credible number in front of a homeowner while you are still on the phone. Speed is the only metric that matters, and accuracy is traded away for it. The risk is well documented, a quote generated from a rough irradiance assumption without module-level shading analysis routinely lands 8 to 15 percent above what the array actually produces, which becomes a redesign or a refund later.

The practical answer for most teams: use a solar proposal generator that is fed by a real design engine rather than a spreadsheet estimate. That way the fast quote and the bankable design are the same document at different stages of completeness, not two numbers you have to reconcile in front of the customer.

Country-Specific Solar Proposal Guides

Proposal requirements diverge sharply by market, because the incentive structure and the export tariff are what the document has to prove. Two deep guides so far:

• US teams need the 30% ITC with its bonus adders, MACRS on commercial, state SREC libraries, and NEM 3.0 self-consumption rather than offset. See best solar proposal software USA.
• Indian teams need the PM Surya Ghar slab structure capped at ₹78,000, ALMM List I and List II filtering, and DISCOM-level net metering. See best solar proposal software India.
• UK teams need Smart Export Guarantee rates set per supplier, MCS eligibility, and 0% VAT. See best solar proposal software UK.
• Australian teams need STC deeming by solar zone and DNSP export limits. See best solar proposal software Australia.
• German teams need EEG rates by commissioning window and the Solarspitzengesetz negative-price rule. See best solar proposal software Germany.
• Canadian teams need ten provincial net metering frameworks and the Clean Technology ITC. See best solar proposal software Canada.
• Dutch teams face the salderingsregeling ending on 1 January 2027. See best solar proposal software Netherlands.
• Philippine teams must price export at the blended generation rate, not retail. See best solar proposal software Philippines.
• South African teams sell backup hours alongside payback, and model Section 12B. See best solar proposal software South Africa.
• UAE teams quote four utility regimes with a four-to-one tariff spread. See best solar proposal software UAE.
• Malaysian teams quote inside the NEM 3.0 caps and a 4 to 6 month timeline. See best solar proposal software Malaysia.
• Singapore teams choose between SCT fixed and ECIS variable settlement. See best solar proposal software Singapore.

Pricing Comparison

The full SurgePV pricing page lays out every plan side by side.

Real Workflow: Branded Proposal in 5 Minutes

1. Design complete in SurgePV. Layout, simulation, financials all in the same project.
2. Click “Generate proposal.” Auto-populates from project data, applies team brand template.
3. Add buyer name and address. Auto-fills greetings, validates currency and tariff.
4. Choose language. Switches the entire proposal between English, Spanish, Portuguese, German, Arabic, French, Turkish, Italian, or Polish.
5. Preview and tweak copy. AI copy generator drafts the executive summary.
6. Send. Buyer gets an interactive web link plus a PDF, e-signature embedded.

Real teams average 3 to 5 minutes for residential, 8 to 12 minutes for C&I where the buyer expects more depth.

Where QuickEstimate Fits

QuickEstimate is the sister CRM built specifically for solar sales. It handles lead capture, follow-ups, PM Surya Ghar subsidy auto-calculation, and the e-signed contract once SurgePV produces the design. The two products integrate via API with one-click handoff.

Who Should Choose Each Tool

• Choose SurgePV if you want one license for design, simulation, financial modelling, and proposals, with multi-language and multi-country support.
• Choose Aurora Sales Mode if you already run Aurora at the upper tier.
• Choose Solargraf or Pylon if you only need residential proposals and already have a separate design tool.
• Choose Enact for residential proposal-first workflows in the US.
• Choose OpenSolar Pro if you are already on OpenSolar and need advanced proposal features.
• Choose Sighten if you only need residential finance modelling.

For most installers and EPCs in 2026, the verdict is the same. SurgePV is the solar proposal software that wins on integration, speed, brand control, and per-seat cost, the same conclusion reached in our broader solar design software buyer’s guide. Once the buyer signs, the next line item is hardware; EPCs sourcing on-grid or hybrid inverters for the job can start pricing that piece the same week the proposal closes.