Solargraf Review 2026: Fast Proposals, Scored 35 of 50

Solargraf is the tool a residential salesperson wants and an engineer complains about, and both of those reactions are correct. It was built in Montreal by Sofdesk, acquired by Enphase in January 2021, and it has spent the years since being sharpened into a very fast path from address to signed contract. In our benchmarking it scores 35 of 50, with the highest proposal-workflow score and one of the lowest engineering scores of any platform we have reviewed. It also has among the most transparent pricing of the tools on our bench, starting at $2,799 per year, and one of the more unusual pricing models. This review covers what it does genuinely well, where the Enphase relationship matters, and the specific reader who should buy it over anything else including our own sister product.

Direct answer. Solargraf is Enphase-owned residential solar proposal software priced from $2,799 to $12,999 per year on a project-quota model. It scores 35 of 50 on our bench: excellent proposals, e-signature, financing and permitting support, weak simulation depth. Best for North American residential installers selling Enphase hardware, including French-language Canadian markets. In our view it is the wrong fit where a lender specifies P90 yield methodology.

If you have already decided to move off it, our Solargraf alternative comparison ranks the replacements. This page is the evaluation you run before that decision, and it is written to be usable by someone who ends up buying Solargraf.

What Solargraf Is

Solargraf is a residential-first solar sales platform: design, quote, proposal, e-signature, financing options, permitting support and a light CRM in one browser tool. It is not a simulation package and does not present itself as one.

The company history matters more than usual here. Solargraf was the product of Sofdesk Inc., a Montreal software company, and Enphase Energy announced the closing of its acquisition of Sofdesk on 26 January 2021. Enphase bought it to put a digital sales layer next to its microinverter business, and that intent has shaped every release since. Solargraf has since been rolled out into further European markets, and it is in production use across the United States, Canada, Brazil, Germany, Austria and the Netherlands.

Three things follow from the Montreal origin, and they are the reason Solargraf is disproportionately strong in Canada:

1. French-language output. Quebec is a bilingual sales market and a French proposal is not a nice-to-have there, it is table stakes. Solargraf ships French output natively rather than through a bolt-on translation layer.
2. Canadian utility and permitting familiarity. The product grew up handling Canadian residential paperwork rather than treating Canada as an export market.
3. Metric and imperial fluency. Small, and it removes an entire class of quoting error.

Our best solar design software for Canada guide covers the broader Canadian tool set. Solargraf’s position there is specific: it is the strongest sales-side tool in that market, and it is not the strongest engineering-side tool.

The 5-Axis Review Bench

This is the Heaven Green 5-Axis Review Bench, the same published scoring frame we apply to every tool we evaluate. Ten points per axis, fifty total, axes stated so you can disagree with a score and still use the method.

Axis	What it measures	Solargraf	Notes
Design and simulation depth	Hour-by-hour yield physics, P50/P75/P90, shading model, temperature and soiling	5 / 10	Adequate for residential estimating in our testing. We found no P50/P75/P90 engine presented in the product.
Compliance and documentation output	Plan sets, SLD, permitting packages, CAD export	7 / 10	Permitting support is genuinely useful. CAD and SLD depth is limited.
Proposal and sales workflow	Branded interactive proposal, financing, e-signature, CRM	9 / 10	Among the best in the category. This is the product.
Price against value	Total annual cost for the work actually delivered	7 / 10	Transparent and fair for residential. Loses points if you need a second engineering licence.
Support and onboarding	Implementation, responsiveness, documentation	7 / 10	Solid, with the usual large-vendor variability.
Total		35 / 50

Verdict. Solargraf is a sales tool that designs, not a design tool that sells. Judge it on close rate and proposal turnaround and it scores very well. Judge it on yield defensibility and it does not.

Pricing

Solargraf publishes its pricing, which puts it ahead of most of this category before a single feature is compared. The model is unusual and worth understanding, because it is sold on project quota plus seats, not on seats alone.

Plan	Annual price (USD)	Projects included	Users included	Extra project	Extra user
Starter	$2,799	240	2	+$11	+$1,440
Small Business	$4,799	480	4	+$10	+$1,200
Teams	$6,399	720	6	+$9	+$960
Enterprise	$12,999	1,500	Unlimited	+$9	n/a

Pricing per Solargraf’s published plan page, August 2026. All plans include interactive proposals, shading tools, rapid design, permitting support, financing options and CRM.

Two details decide whether this model is cheap or expensive for you:

1. Public API access costs $4,000 per year on every plan except Enterprise, where it is included. If you intend to wire Solargraf into your own CRM or data warehouse, that line changes the comparison completely. Starter plus API is $6,799, which is above the Teams plan price.
2. The project quota is the real meter. At Starter, 240 projects across 2 users is 10 projects per user per month. A door-knocking team that designs five speculative options per lead will burn quota far faster than a referral-led team that designs once per customer.

Prices above are list. Larger installers negotiate, and custom plans are offered on request, so treat the Enterprise number as an anchor rather than a ceiling.

What Solargraf Does Best

Speed from address to signed contract. This is the whole thesis and in our testing Solargraf delivers on it. A trained rep can go from address to a branded, interactive, financed, signable proposal in a single kitchen-table sitting, and the workflow we ran did not require the salesperson to understand string sizing.

Genuine French-language output for Canadian markets. In Quebec, a proposal that arrives in English costs you deals. Solargraf’s French output is native to the product rather than a translation wrapper, which is a direct consequence of the Montreal engineering team. This is the single most underrated reason Canadian installers pick it.

Financing presented inside the proposal. Loan and payment options render next to the savings numbers rather than in a separate PDF the customer never opens. For a residential close, the monthly payment line is the number that decides the sale.

Permitting support. Plan-set and permit package assistance removes a genuine bottleneck for small teams who do not employ a drafter. It is not a substitute for stamped engineering, and Solargraf does not claim it is.

Enphase hardware integration that actually works. If you sell Enphase microinverters and batteries, the equipment selection, compatibility checks and system configuration inside Solargraf were, in our testing, tighter than for the other brands we tried. This is a real benefit, and it is stated here as a benefit before it is discussed as a limitation.

Transparent pricing. Publishing a plan table with project counts and overage rates is rarer in this category than it should be, and it deserves credit.

Get a free site assessment. Our engineers visit within 24 hours and send a custom savings proposal in 48 hours, no cost, no obligation. Get your free quote →

Where Solargraf Falls Short

Engineering depth is shallow, and that is the honest headline. In our testing Solargraf’s yield numbers come from a lighter engine than a dedicated simulation package, and as of August 2026 we found no full 8,760-hour, module-level model producing P50, P75 and P90 confidence bands with soiling, spectral and thermal loss breakdowns presented in the product. For residential estimating we rate that as defensible. For a financed commercial project where a lender specifies the yield methodology, we would expect you to end up buying a second licence. Our solar shading analysis software guide explains what separates an estimating shading tool from one built for finance-grade reporting.

The Enphase tilt is a genuine consideration, and here is the specific version. Solargraf is owned by a hardware manufacturer. That is not an accusation, it is a corporate fact worth factoring in: Enphase hardware had the deepest integration in the version we tested, and the vendor you are buying design software from also sells equipment that can appear on your bill of materials. If you are an Enphase-first shop, this alignment is a benefit and you should take it. If you sell mixed inverter brands, or if you expect to switch brands based on price, you are choosing to run your sales process inside a competitor’s product. That is a business judgement rather than a technical fault, and it should be made deliberately rather than discovered later. Weigh it the same way you would weigh any single-vendor dependency.

Commercial work is not the target. Above roughly 100 kW, the design tooling, the stringing control and the documentation output all started to feel thin on our bench. The product’s own marketing is aimed at residential rather than commercial buyers.

Limited language coverage beyond English and French. Two languages served well is better than eight served badly, but it constrains any installer expanding beyond North America and the specific European markets Enphase has launched into.

No native AI design assistant that we could find. In the version we tested, design remained a manual click-and-drag flow. That is fine, and it is also a growing gap against platforms shipping natural-language design.

Project quota can bite. If your sales motion produces many designs per closed deal, model your real design-to-close ratio before picking a tier. Overage at $9 to $11 per project is not punitive, but it is not zero.

Who Should Buy Solargraf

The reader for whom Solargraf is the right purchase, ahead of every other tool discussed on this site including ours:

You are a North American residential installer doing 200 to 700 projects a year, selling Enphase microinverters and batteries as your standard offer, closing in the customer’s home or on a video call. Your constraint is proposal turnaround and close rate, not yield defensibility. Nobody in your pipeline has ever asked you for a P90 number. You have two to six people who need software access and no in-house engineer.

If you also sell in Quebec or any bilingual Canadian market, the case strengthens sharply. Native French proposal output, Canadian permitting familiarity and a Montreal-based product team put Solargraf ahead of tools that treat Canada as an afterthought. That is a real reader with a real reason to skip SurgePV, and this review is not going to pretend otherwise.

A second reader: roofing companies adding solar. The sales-first design flow suits a team whose core skill is closing home-improvement work rather than electrical design.

Who Should Not Buy Solargraf

Anyone whose projects get financed on modelled yield. If a bank, a fund or a corporate PPA counterparty specifies the simulation methodology, you will need a tool that produces reports in that methodology. Start with our PVsyst review or PV*SOL review.

Commercial and industrial EPCs above 100 kW. The design ceiling arrives before your project size does. The best solar design software roundup ranks the tools that scale up.

Multi-brand installers who want vendor neutrality. If independence from a hardware manufacturer matters to you as a matter of policy, that alone rules Solargraf out, and it is a legitimate policy.

Indian installers. Solargraf’s published marketing does not target India, and as of August 2026 we found no PM Surya Ghar subsidy workflow and no DISCOM (distribution company) net metering tariff library in the product. Our solar design software India comparison covers what actually fits that market.

Teams that need SLD and BOQ as a self-serve output. Single-line diagrams and bills of quantity are not Solargraf’s strength. See our solar BOQ software guide.

Solargraf vs SurgePV

Disclosure, stated plainly: SurgePV is a sister product of Heaven Green Energy and we run it on our own EPC projects daily. That is first-party operating experience and a commercial interest at the same time. Read the table with both in view.

Axis	Solargraf	SurgePV	Honest read
Proposal and close workflow	Excellent, financing and e-sign native	Strong, white-label, interactive	Close. Solargraf edges it on North American financing integrations.
French-language output	Native, Montreal-built	French included in a 9-language set	Solargraf, for Quebec specifically.
8,760-hour simulation with P50/P75/P90	Not presented as a product output	Every paid plan, P50/P75/P90	SurgePV.
SLD and BOQ	Limited in our testing	Native auto-generated	SurgePV.
Hardware vendor independence	Enphase-owned	Independent of any manufacturer	SurgePV.
Commercial and industrial scale	Weak above 100 kW on our bench	Designed for it	SurgePV.
India workflow (PM Surya Ghar, DISCOM tariffs)	Not offered	Native	SurgePV.
Brand track record	Since 2015, Enphase-backed since 2021	Launched 2025, thin brand recognition	Solargraf.
Drone or as-built capture	Not offered	Not offered	Neither. See our Scanifly review.
Structural stamping	Not offered	Not available	Neither.
Racking database	Adequate for residential	Thinner than its module and inverter libraries	Solargraf, marginally.
Published price	$2,799 to $12,999 per year	$1,299 per user per year	Depends entirely on seat and project counts.

SurgePV’s weaknesses are named in that table deliberately. It launched in 2025 and carries far less brand recognition than an Enphase-backed product, it has no drone capture, it does not do structural stamping, and its racking database is thinner than its module and inverter libraries. On raw residential proposal polish and North American financing plumbing, Solargraf is a serious product and a fair choice.

The dividing line is honest and simple. If your projects never need a defensible yield report and you sell Enphase, Solargraf is the more focused tool. If you sell mixed hardware, work above 100 kW, or ever need a P90 number, it is worth pricing one platform that covers both jobs against two that each cover one. That is the case for SurgePV’s simulation engine sitting under the same proposal.

How Heaven Green Energy Uses This In Practice

We are an EPC before we are a software opinion. Our design team runs SurgePV daily across residential, commercial and industrial work out of Gujarat, and our sales side runs on QuickEstimate for lead routing and subsidy paperwork.

The reason we do not run a Solargraf-shaped stack is specific to India rather than a criticism of the product. Our residential proposals must carry PM Surya Ghar subsidy arithmetic and DISCOM-specific net metering tariffs, and roughly a third of our volume by capacity is commercial work above 100 kW where a lender or a corporate finance team wants the yield methodology named. A proposal-first tool without a P50/P90 engine would leave both of those unserved for us, so we would be buying two licences to do what one does.

What we do take from Solargraf’s design philosophy is the discipline of proposal turnaround. A proposal that arrives 48 hours after the site visit closes materially better than one that arrives in a week, and that is true in Ahmedabad exactly as it is in Montreal. Where a client needs the sales layer separated from the engineering layer, we point them at QuickEstimate’s proposal generator for the sales side and Heaven Designs’ solar design software resource centre for the engineering side.

For readers on the buying side rather than the building side:

• Residential Solar: 1 to 10 kW rooftop with PM Surya Ghar handled start to finish.
• Commercial Solar: 10 to 100 kW with ROI modelling and depreciation planning.
• Industrial Solar EPC: 100 kW+ turnkey.
• Solar Calculator: subsidy and 25-year savings in 60 seconds.

Other evaluations in this series: Aurora Solar review, OpenSolar review and SolarEdge Designer review. The category overview is our solar design software pillar.

Frequently Asked Questions

How much does Solargraf cost in 2026?

Solargraf publishes four annual plans: Starter at $2,799 for 240 projects and 2 users, Small Business at $4,799 for 480 projects and 4 users, Teams at $6,399 for 720 projects and 6 users, and Enterprise at $12,999 for 1,500 projects with unlimited users. Extra projects cost $9 to $11 each and extra users $960 to $1,440. Public API access adds $4,000 per year on every plan except Enterprise.

Is Solargraf owned by Enphase?

Yes. Enphase Energy closed its acquisition of Sofdesk Inc., the Montreal company behind Solargraf, on 26 January 2021. Solargraf continues to operate as a distinct product and supports non-Enphase equipment, though in our testing Enphase hardware had the deepest integration. That is a consideration for multi-brand installers rather than a defect.

Does Solargraf support French?

Yes, natively. The product was built in Montreal and French-language proposal output is part of the core product rather than a translation add-on. This is the main reason Solargraf is disproportionately common among Quebec and bilingual Canadian residential installers, where an English-only proposal costs deals.

Can Solargraf produce P50/P90 yield reports?

Not as far as we could tell. Solargraf’s yield estimates are built for residential sales rather than project finance, and as of August 2026 we found no full 8,760-hour, module-level simulation producing P50, P75 and P90 confidence bands with itemised soiling, thermal and spectral losses. Financed commercial projects generally call for a dedicated engine such as PVsyst, HelioScope or SurgePV alongside or instead of Solargraf.

Is Solargraf good for commercial solar?

Up to roughly 100 kW we rate it workable. Above that the design controls, stringing flexibility and documentation output start to constrain you, and the absence of P50/P90 output becomes a blocker whenever a lender specifies the methodology. Commercial and industrial EPCs generally pair it with an engineering tool or move to a platform that covers both jobs.

Solargraf or SurgePV, which should I choose?

Choose Solargraf if you are a North American residential installer selling Enphase hardware, especially in French-speaking Canada, and no one asks you for yield methodology. Choose SurgePV if you need 8,760-hour P50/P75/P90 simulation, SLD and BOQ output, commercial scale, or India workflows like PM Surya Ghar. SurgePV is newer, launched in 2025, and has no drone capture or structural stamping.

Does Solargraf work in India?

Not meaningfully, on our reading of the product as of August 2026. We found no PM Surya Ghar subsidy workflow, no DISCOM net metering tariff library, and no Indian permitting support. In our view Indian installers are better served by tools built for the market, which we compare in our solar design software India guide.

How many projects does a Solargraf plan actually cover?

The quota is per plan year, not per user. Starter’s 240 projects across 2 users is about 10 designs per user per month. If your sales process produces two or three design variants per lead, model your real design-to-close ratio before choosing a tier, because overage runs $9 to $11 per additional project.