Is There Really Free Solar Installer Software? Honest Answers for 2026

"Free solar installer software" is one of the most-searched phrases in the solar business-tools category. It also produces some of the most misleading results. The tools that appear are not always free, not always solar-specific, and not always what a growing installation business actually needs.

Below are the questions we hear most often from installers evaluating their options, answered directly.

Does genuinely free solar installer software exist?

Yes, but the definition of "free" varies enormously between tools. The category breaks into roughly four types: free trials (typically 14 to 30 days, then paid); freemium tiers (free forever within feature limits); open-source platforms (free in code but requiring self-hosting and ongoing technical maintenance); and general-purpose tools — spreadsheets, free CRMs, form builders — that are free but were never built for solar.

The distinction matters because the cost of a "free" tool is rarely zero. A 30-day trial you half-configure costs you a month. An open-source platform you cannot maintain yourself costs you a developer. A generic CRM free tier costs you the hours you spend manually entering product specs, VAT rates, and ROI figures that a solar-specific tool would calculate automatically.

Can a generic free CRM like HubSpot Free or Zoho Free run a solar installation business?

For basic lead capture and follow-up, yes. For quoting, project tracking, and customer communication in a solar context, no — not without significant manual work. HubSpot Free will capture a lead from your website and put it in a pipeline. It will not know your EAC tariff band, your regional VAT rate, or the grant your customer qualifies for. It will not generate a tiered offer from a product catalogue. Every quote still starts as a blank document.

Installer A in our onboarding cohort used HubSpot Free for six months. Installer B, a similar-sized operation in the same region, used a solar-specific platform from the start. At the six-month mark, Installer A was quoting 12 jobs per week with two office staff. Installer B was quoting 19 jobs per week with one. The difference was not effort — it was automation of the steps that a generic CRM cannot automate.

What about free solar design tools like PVsyst or SolarEdge Designer?

These are real tools and useful for what they do — system sizing, shading analysis, yield estimation. PVsyst's demo mode will produce an accurate design study. SolarEdge Designer integrates with SolarEdge hardware and produces a layout quickly. Neither is a business management platform. They do not capture leads, generate branded customer offers, track project stages, or manage post-installation relationships. They are one component of a stack, not the stack itself.

If you are already using PVsyst or a similar design tool and looking for a free business-management layer to complement it, that is a reasonable approach — provided the business-management tool can accept or approximate the design output rather than requiring you to re-enter data.

Are there red flags that indicate a "free" tool is not actually free?

Several. The most common: no public pricing page (the number is negotiated per customer and almost never favourable to small operators); a credit card required to access the free tier; a terms-of-service clause stating that anonymised data may be shared with third parties (your lead data being resold to competitors is not hypothetical in parts of the solar lead-generation market); and no data export facility, which means switching tools later requires rebuilding your customer database from memory.

"Free for the first 10 quotes, then contact sales" is a particularly common pattern. The free allocation is sized to let you configure the tool and see value, but not to run a real business. The "contact sales" pricing is typically set above what the free-tier experience would lead you to expect.

What does a legitimately free solar installer platform actually include?

The honest answer is: less than the paid tier, but enough to run a small operation without supplementing with paid tools. A genuine free tier for a solo installer or a 2–3 person team should include a branded website or subdomain, a limited product catalogue (20 to 50 products is typical), at least one offer template with automated pricing, basic lead pipeline management, and enough customer record storage to handle the job volume the free tier is sized for.

The upgrade path should be tied to business growth — volume, team size, advanced features — not to arbitrary feature restrictions that make the free tier non-functional.

How do the main options compare on total cost of ownership?

Tool	Nominal cost	Solar-specific quoting	Regional VAT / grants	Customer portal	Actual cost of ownership
Google Sheets / Excel	Free	No — manual	No — manual	No	4–6 hrs/week in manual quoting and tracking
HubSpot Free CRM	Free	No — manual	No — manual	No	2–3 hrs/week; still needs separate quoting tool
PVsyst (demo)	Free	Design only, no pricing	No	No	Design tool only; requires full business stack alongside
Generic website builder (Wix free)	Free (Wix-branded)	No	No	No	Free tier unusable professionally; paid from €17/mo, still no solar features
Open-source solar platform	Free in code	Varies by project	Requires configuration	Varies	Developer time to deploy and maintain; not realistic without technical resource
Raysly Starter	Free forever	Yes — automated	Yes — preconfigured per region	Yes	No supplementary tools needed for small-volume operation

Raysly's Starter tier is free with no credit card required, no data-resale clause, and full data export at every plan level. Growth (€79/month) becomes relevant when volume grows past the Starter limits or when the 1–4 tier auto-bundle generator and full client portal materially change the close rate — which, in our experience, tends to happen within the first three to six months of active use.