Swedish solar customers are numerate, sceptical, and about to spend a winter watching their monitoring app show almost nothing. That combination punishes optimistic proposals harder than most markets. The installer who shows the December number up front, explains the deductions correctly, and sizes to the household’s actual consumption keeps the customer through the first winter. The one who leads with an annual figure does not.
Direct answer. The best solar proposal software in Sweden for most installers is a Nordic-market tool for domestic work, because the gron teknik deduction and microproduction tax credit are handled natively, or SurgePV for commercial work where the proposal also carries the layout and single-line diagram. Whichever you pick, the monthly production curve has to be on the page.
TL;DR
- Show the monthly curve. A Swedish annual figure conceals a near-zero December.
- The gron teknik deduction reduces the invoice at source, which is different from a claimed rebate.
- A tax credit applies to microproduction fed into the grid, subject to conditions and an annual volume limit.
- Electricity price areas mean the value of self-consumed energy differs substantially between north and south.
- Winter is when Swedish electricity is most expensive and solar produces least. Say so.
What Sweden Actually Changes About Proposal Software
The seasonal mismatch is the story. Swedish electricity demand and prices peak in winter, when a solar array produces almost nothing. Summer production is strong but coincides with lower demand and often lower prices. A proposal that reports annual generation and annual savings, without showing that the production and the need are out of phase, is describing the system inaccurately even if the arithmetic is right.
The gron teknik deduction works at the invoice. Sweden’s green technology deduction is applied by the installer against the invoice, so the customer sees a reduced price rather than claiming money back later. It has percentage and ceiling conditions attached. Presenting it correctly means showing the gross price, the deduction applied, and the net, together with the conditions.
Microproduction has a tax credit. A tax credit applies per kilowatt-hour fed into the grid, subject to eligibility conditions and an annual volume limit. Modelling export revenue without that limit, or without the eligibility conditions, overstates the return for larger systems.
Price areas change the answer. Sweden’s electricity price areas produce materially different prices between the north and the south, and that gap has at times been large. The value of a self-consumed kilowatt-hour therefore depends on the customer’s location, which affects both sizing and payback.
Batteries have a separate case. With variable spot pricing and price-area differences, Swedish battery economics can include arbitrage alongside self-consumption. Those are separate benefits and should be modelled separately.
The Platforms Ranked for Sweden
| Platform | Best for | Monthly and hourly output | Deduction and credit handling | Design output | Price per seat per year |
|---|---|---|---|---|---|
| Nordic market tools | Domestic workflow | Yes | Native | Layout | Subscription, SEK |
| SurgePV | Commercial proposals plus design | Yes, 8,760-hour | Configurable | Full, with DWG | $1,299 to $1,899 |
| PVsyst | Financed and larger commercial | Yes | No | Yield only | ~$500 |
| HelioScope | Commercial layout and yield | Yes | No | Layout only | ~$1,188 |
| OpenSolar | Low-volume domestic | Basic | Configurable | Basic | $0 plus transaction fees |
| Aurora Solar | Larger commercial-facing teams | Yes | Configurable | Good | $1,908 to $3,108 |
| Spreadsheet over hourly output | Bespoke commercial cases | Manual | Manual | None | Time |
Nordic-market tools handle the deduction and credit mechanics natively and are tuned to Swedish conditions, which matters most on domestic work.
SurgePV fits commercial work, producing hourly generation against load, the string design, the single-line diagram, and the customer document from one model. Technical detail in best solar design software in Sweden.
PVsyst supplies the hourly series and the report Swedish lenders accept on financed projects. See PVsyst price.
Try the software behind this guide
Show the customer the honest monthly curve
SurgePV models 8,760 hours at Swedish latitudes against the customer load, so seasonality and self-consumption are visible, and emits the single-line diagram plus a white-label proposal.
Book a free SurgePV demo →No credit card. 20-minute walkthrough on one of your own projects.
What a Swedish Proposal Has to Contain
- System specification with modules, inverter, and kWp.
- Monthly production profile shown graphically, with December stated plainly.
- Annual generation alongside the monthly curve, never instead of it.
- Snow loss assumption stated separately from general soiling.
- Self-consumption share modelled hourly against the household or business load.
- Price area identified, with the electricity price used.
- Gron teknik deduction applied at the invoice, with the gross price, the deduction, and the conditions shown.
- Microproduction tax credit with the eligibility conditions and annual volume limit stated.
- Battery case, if included, split into self-consumption and any arbitrage benefit.
- Foranmalan and connection timeline with the grid company.
Item 2 is the single most useful thing a Swedish proposal can do. Customers who see the December figure at the point of sale do not complain about it in January.
Pricing in Swedish Kronor
| Stack | USD per year | Approx. SEK at 10.5 | Covers |
|---|---|---|---|
| OpenSolar | $0 plus fees | Transaction-linked | Domestic proposal |
| PVsyst | ~$500 | ~5,250 kr | Hourly yield, no proposal |
| HelioScope | ~$1,188 | ~12,474 kr | Commercial layout and yield |
| SurgePV | $1,299 to $1,899 | ~13,640 kr to 19,940 kr | Proposal plus design and SLD |
| Aurora | $1,908 to $3,108 | ~20,034 kr to 32,634 kr | Proposal plus design |
Exchange rate is illustrative.
What Most Swedish Installers Get Wrong
They sell an annual number into a seasonal reality.
A Stockholm household told their system will produce a given number of kilowatt-hours a year forms an expectation of roughly even monthly output. In December they see close to nothing, at exactly the point their electricity bill is highest, and they conclude the system is faulty or the installer exaggerated. Neither is true, and the entire problem was preventable by putting the monthly chart on page one. Swedish customers respond well to being told the awkward part first.
The second mistake is modelling export revenue without the microproduction credit’s volume limit. For a larger array on a low-consumption household, that limit binds, and the modelled income does not arrive.
When Proposal Software Is Not the Constraint
In much of Sweden the binding question is whether the roof can carry the array plus accumulated snow. That is a structural assessment, not a sales problem.
Our solar civil and structural engineering team produces snow and wind load assessments delivered as STAAD Pro report calculations, with solar rooftop detailed engineering design covering the construction pack. See the sample design pack or talk to our team.
Conclusion
- Put the monthly curve on page one. It costs a few deals and prevents most complaints.
- Show the gron teknik deduction as an invoice reduction with its conditions. It is applied at source, not claimed later.
- Respect the microproduction credit’s volume limit. Above it, modelled export income does not materialise.
In this country series: solar software in Sweden, best solar design software in Sweden, shading analysis software in Sweden, Opensolar review. Tool deep dives: Pvsol review, Pvcase review.
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Disclosure and accuracy note
Commercial relationship. Heaven Designs and SurgePV are part of the same group. Treat our recommendation of SurgePV as a vendor making its own case, not an independent verdict. We have tried to describe every other product fairly, and to say plainly where a competitor is the better choice.
Pricing. All prices are indicative, compiled from public sources when this page was written. They vary by tier, region, contract term and exchange rate, and change without notice. Several vendors quote rather than publish, and some price in currencies other than the US dollar, so a converted figure moves with the exchange rate. Confirm current pricing with the vendor before you decide anything.
Trademarks and corrections. All product names and trademarks belong to their respective owners, and are used here for identification and comparison only. Their use does not imply affiliation with or endorsement by those companies. If anything here is out of date or wrong, tell us and we will correct it.
FAQ
What is the best solar proposal software in Sweden? Nordic-market tools for domestic work, because the gron teknik deduction and microproduction credit are handled natively, or SurgePV for commercial work where the proposal also carries the design.
Why does the monthly production curve matter so much in Sweden? Because at Swedish latitudes December output is close to zero while electricity prices are at their highest. An annual figure alone creates an expectation the system cannot meet in winter.
How does the gron teknik deduction work? It is applied by the installer against the invoice, so the customer pays a reduced price rather than claiming later. Percentage and ceiling conditions apply and should be stated.
Is there a tax credit for exported solar? A tax credit applies per kilowatt-hour fed into the grid, subject to eligibility conditions and an annual volume limit. For larger arrays on low-consumption households the limit binds.
Do electricity price areas change the proposal? Yes. Prices differ substantially between Sweden’s price areas, so the value of self-consumed energy depends on the customer’s location and affects both sizing and payback.
How much does solar proposal software cost in Sweden? From 0 kr with OpenSolar’s transaction model to roughly 32,600 kr per user per year at Aurora’s higher tiers. Cross-platform math is in our solar design software pricing breakdown.
What about the design software decision separately? Covered in best solar design software in Sweden.
