Best Solar Proposal Software Netherlands: 2026

Every Dutch solar proposal written between now and 1 January 2027 has a shelf life problem. The salderingsregeling ends on that date, confirmed when the Senate approved the termination in December 2024. A system quoted today will spend a few months under net metering and roughly twenty-five years without it. Yet the standard Dutch quote still leads with a payback figure calculated under netting, which describes the shortest and least representative period of the customer’s ownership. This guide compares the platforms Dutch installers should be using to quote honestly through the transition, and explains why the battery line moves from optional extra to the centre of the document.

Short version. The best solar proposal software for Dutch installers in 2026 is SurgePV, because it computes self-consumption and export separately from an hourly simulation against a real load profile, models terugleverkosten, and can present the pre-2027 and post-2027 scenarios side by side in the same customer document. OpenSolar is free and widely used but assumes annual netting. PV*SOL models self-consumption well but is desktop-bound.

The Netherlands is about to run a live experiment in what happens when a market built on net metering loses it, and the installers who handle the conversation well will take share from those still quoting the old numbers. For the design-side comparison see our best solar design software Netherlands guide, and the global solar proposal software ranking for the category without the Dutch lens.

What A Dutch Proposal Has To Show From Now On

Two scenarios, not one. A quote issued in 2026 covers a system that operates under two different regimes. Showing only the netting figure is not conservative or optimistic, it is simply describing the wrong period. Showing only the post-2027 figure understates the first months. Both belong in the document, with the post-2027 case as the headline because it governs the asset’s life.

Self-consumption and export as separate lines. Under netting these were the same thing, which is why Dutch quotes historically collapsed them into a net annual figure. From 2027 they are different businesses at different prices. A customer who cannot see the split cannot understand why load shifting or a battery would help.

Terugleverkosten stated explicitly. Several suppliers now charge customers for exporting. Where that applies, export carries a net cost rather than a net income, and a proposal listing export as revenue will not match the first bill.

A battery case with real sizing. Not a bolt-on line item, but a modelled option showing how much surplus the battery actually captures and what that is worth. Our solar plus storage design software comparison covers the dispatch modelling this requires.

The Payback Conversation Dutch Installers Are About To Have

The commercially interesting point is that honesty here is an advantage rather than a cost. A homeowner comparing three quotes, two showing seven year paybacks and one showing a twelve year payback with a clear explanation and a battery option, is being given something the other two did not provide. In a market where the policy change is widely reported and half a million social housing tenants are already being told they will lose money, credibility is worth more than an attractive number.

There is also a practical sales consequence. The post-2027 economics make batteries, heat pump scheduling, and EV charge timing genuinely valuable rather than marginal. Installers who can model those are selling a larger, higher-margin system on a defensible basis. Installers who cannot are selling panels into a market where panels alone stopped being the answer.

The Six Platforms Dutch Installers Should Evaluate

1. SurgePV, the integrated pick

8,760-hour module-level simulation against a real load profile, battery dispatch, configurable export compensation and terugleverkosten, and white-label proposals with e-signature generated from the same project record. Both scenarios can be shown in one document. $1,299 to $1,899 per user per year.

2. OpenSolar

Free at entry and heavily used in Dutch residential, with a clean customer-facing document. The financial logic assumes annual netting, and simplified shading limits self-consumption accuracy. Both become liabilities in 2027. See our OpenSolar alternative breakdown.

3. PV*SOL

Strong European simulation with credible self-consumption and battery modelling. Windows desktop with a thin proposal layer, so it usually pairs with separate quoting. See our PV*SOL alternative comparison.

4. Aurora Solar

Deep residential design built for US utility structures, with no Dutch tariff logic. Difficult to justify here. See our Aurora Solar alternative comparison.

5. Zonneplan-style consumer calculators

Several Dutch tools handle supplier tariff comparison and the consumer-facing sums well, and some already model the 2027 change. They are sales aids rather than design-linked proposal engines.

6. Excel plus a design tool

Common in smaller Dutch operations, and flexible enough to model the transition if someone maintains it. That maintenance burden is the risk, since supplier terugleverkosten and expected compensation rates are both moving.

Netherlands Solar Proposal Software Comparison

Worked Example: How The Same Quote Reads Under Both Regimes

An illustrative calculation using published expectations for post-2027 compensation. Inputs: 4.8 kWp, 4,560 kWh generation, 3,400 kWh consumption, import at 30 cents per kWh, post-2027 export at 7 cents per kWh, self-consumption 32% without storage, installed cost EUR 5,400.

The middle column is the one most Dutch customers have not seen yet. The right column is the conversation worth having, because it recovers half the lost benefit and the payback stays competitive once the battery cost is included. A proposal that only shows the left column is quoting a number with a five month shelf life.

Who Should Choose What

• Choose SurgePV if you want both scenarios, terugleverkosten and modelled battery sizing in one customer document generated from the design record.
• Choose PV*SOL if your work is engineering-led and someone else builds the quote, and you value its European simulation reputation.
• Choose OpenSolar only for simple residential where entry cost dominates, and plan to move before January 2027.
• Avoid Aurora for Dutch residential. Good software, no relevance to the tariff structure.

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

The Bottom Line

Dutch proposal software is about to be judged on one thing: whether it can quote a system honestly across a policy change that lands in five months.

• Put the post-2027 number in the headline. It governs twenty-five of the system’s twenty-five years. The netting period is a footnote, not the forecast.
• Collect smart meter data at the survey. Half-hourly consumption is what makes the post-2027 estimate real rather than assumed, and Dutch coverage makes it obtainable.