Best Solar Proposal Software Poland: 2026 Guide

The hardest number in a Polish solar proposal is the one nobody can pin down. RCEm, the market reference rate that settles prosumer exports under net billing, was 132.92 PLN per MWh in April 2026, the lowest since the mechanism was introduced, and 191.37 in May. That is a swing of more than 40 percent in the value of exported energy inside a single month. A proposal that quotes one export rate as fact is quoting a number that may be wrong before the customer signs. The way out is not a better forecast, it is a document built around the part of the value that does not move. This guide compares the platforms Polish installers should shortlist.

Short version. The best solar proposal software for Polish installers in 2026 is SurgePV, because it prices exported and self-consumed energy separately against net billing and presents payback as a tested range. PVsyst is the bankable simulation reference with no proposal layer. Aurora assumes US net metering, which Poland moved away from in 2022.

For the design-side comparison see our best solar design software Poland guide, the shading treatment in solar shading analysis software Poland, and the global solar proposal software ranking.

Build The Document On What Does Not Move

The structural fix is to reorganise the proposal around the stable half of the equation.

A proposal organised this way says: here is how much energy this household will use directly, here is what that saves at today’s retail prices, and here is a smaller additional amount from exports which will vary. That is a claim you can stand behind in twelve months.

The alternative, leading with a single payback figure derived from one month’s RCEm, is a claim with a short shelf life. It also invites a competitor quoting during a high-RCEm month to show a better number for an identical system.

Show Payback As A Range, With The Reason

Precise payback figures are a habit worth breaking in Poland specifically.

Honest ranges look roughly like this: photovoltaics without storage in the region of nine to thirteen years, with storage roughly seven to ten, and with subsidy applied closer to five to six. Those bands move with electricity prices and with RCEm.

Quoting “8.4 years” implies a precision the mechanism does not support, and it is trivially falsifiable later. Quoting “roughly seven to ten years, and here is what moves it” is both accurate and more persuasive to a customer who has done any reading, because it signals that you understand the variable rather than pretending it away.

There is a competitive benefit too. When you show the range and explain that the low end assumes strong RCEm and high electricity prices, a rival’s confident single figure becomes something the customer can interrogate.

Mój Prąd Is Configuration-Dependent, So Show Configurations

Support is not a flat discount to subtract at the end. Photovoltaics alone attracts around 7,000 PLN, while an integrated system including storage, a heat pump and energy management can reach substantially higher, with storage support of up to around 16,000 PLN within that.

That means the subsidy is an output of the design conversation, not an input to the price. The proposal structure that follows naturally is a comparison of two or three configurations, each showing its own support level, its own self-consumption share and its own payback range.

This is a better sales document than a single-option quote for a reason that has nothing to do with subsidies. It moves the conversation from “is this worth doing?” to “which of these is right for us?”, and it lets the customer arrive at the storage option themselves rather than being sold it.

What Else Belongs In The Document

The 8 percent VAT rate, as a visible line. Residential installations attract the reduced rate, customers often do not know this, and it improves the comparison against other home improvements. Confirm applicability rather than assuming it, since commercial work may not qualify.

A stated self-consumption assumption. This is now the most load-bearing number in the proposal. Say where it came from and show what happens if it lands ten points lower.

Winter expectations. Polish winter generation is a small fraction of summer output. A customer who has seen the monthly profile before signing does not phone in December.

Shading priced by hour, not percentage. Under net billing an annual shading percentage does not convert into money. Our solar shading analysis software Poland guide covers why.

The Six Platforms Polish Installers Should Evaluate

1. SurgePV, the integrated pick

Separate pricing of exported and self-consumed energy against RCEm and retail, battery dispatch modelling, configurable Mój Prąd support by configuration, sensitivity testing across RCEm assumptions, and white-label proposals with e-signature in 9 languages, generated from the same design record. $1,299 to $1,899 per user per year.

2. PVsyst

Bankable simulation for large ground-mount and commercial work, frequently named by lenders. No proposal layer and no net billing logic. See our PVsyst alternative review.

3. PV*SOL

Strong European residential modelling with capable self-consumption and storage tooling. Desktop-based, partial proposal capability. Our PV*SOL alternative guide covers the trade-offs.

4. OpenSolar

Free, quick, and produces a presentable customer document. No net billing logic and limited storage dispatch modelling. See our OpenSolar alternative comparison.

5. Aurora Solar

Capable residential design and proposals built around US net metering, which Poland left in 2022. See our Aurora Solar alternative comparison.

6. Spreadsheets plus a yield tool

The Polish default in smaller practices, and the most likely place a single hard-coded export rate is still doing the work of a range.

Poland Solar Proposal Software Comparison

Worked Example: The Same System Quoted In Two Months

An illustrative calculation showing why a point estimate fails, not a specific customer project. Inputs: 8 kWp array, 8,000 kWh generation, 5,000 kWh consumption, 35% self-consumption, 5,200 kWh exported.

Two installers quoting the identical system five weeks apart produce materially different documents, and both are defensible on the day and wrong shortly after. The third column is the only one that stays true.

Note what does not change across the columns: avoided import. That is the argument to lead with, and it is stable precisely because it depends on retail prices and the household’s own consumption rather than on a wholesale reference. Every hour of generation moved from the export column into the self-consumption column moves value from the volatile side of this table to the stable side.

Who Should Choose What

• Choose SurgePV if you need split net billing pricing, RCEm sensitivity and configuration-linked subsidy modelling in one document.
• Choose PVsyst where a lender names it on commercial or ground-mount work, paired with separate quoting.
• Choose PV*SOL if your team is desktop-based and does detailed residential modelling.

After signing, pipeline and follow-up sit in a CRM. QuickEstimate takes the handoff from SurgePV by API.

The Bottom Line

Polish proposals fail by treating a volatile wholesale reference as a fixed input.

• Lead with avoided import. It is the stable half of the value and the half you can still defend in a year.
• Quote payback as a range. Nine to thirteen without storage, seven to ten with, five to six with subsidy, and say what moves it.
• Show configurations, not one price. Mój Prąd support depends on what is installed, so the comparison is the document.