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🇩🇰 Solar Calculator Denmark

Enter your monthly electricity bill and city — get solar system size, hourly vs annual settlement economics, elafgift credit, VE-bonus, battery self-consumption benefit, and payback period.

Your electricity details
krDKK
Solar system results — Denmark
6 kWp system — 847 kWh/kWp/yr
Hourly settlement (gruppe 6): Self-consumption is king. Each kWh you self-consume saves kr 3.00; each kWh exported earns only ~kr 0.80. With your 10 kWh battery, self-consumption is ~65%.
Monthly kWh usage400 kWh/mo
Annual solar production5.081 kWh/yr
Self-consumption rate65%
Self-consumption savingskr 9.908/yr
Export income (spot + VE-bonus)kr 1.423/yr
Total annual benefitkr 11.330/yr
System cost (installed)kr 72.000 – kr 96.000
Battery cost (10 kWh)kr 45.000
Total installed costkr 129.000
Payback period11.4 years
25-year net savingskr 154.255
Danish solar tip: Under hourly settlement, your solar system is most valuable during hours of high spot prices — typically morning and evening. A battery lets you store midday solar production for these peak hours, maximizing kr 3.00/kWh self-consumption savings vs. ~kr 0.80/kWh export.
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How to Use This Calculator

Enter your bill and city

Enter your average monthly electricity bill in Danish krone (DKK) — this should include elafgift (electricity tax), nettarif (network tariff), and the energy component. Danish retail electricity costs approximately kr 3.00/kWh blended. All Danish cities have similar solar resources (2.8–2.9 PSH/day), producing 800–900 kWh/kWp/year — reliable but well below southern Europe.

System size and battery

Select your system size. Under hourly settlement (gruppe 6), the key question is: how much of your solar production can you use yourself? Oversizing your system means more export at low spot prices. Select your battery size — a 10 kWh battery increases self-consumption from approximately 40% to 65%, which under hourly settlement makes a significant difference in economics (kr 3.00/kWh saved vs. ~kr 0.80/kWh exported).

Settlement type: hourly vs annual

All new Danish solar systems installed from 2023 use hourly settlement (timesafregning, gruppe 6): you are credited the Nord Pool spot price for each kWh you export, hour by hour. Legacy systems installed before 2023 may use annual nettoafregning, where exported electricity earns a credit including elafgift refund. Hourly settlement means self-consumption is dramatically more valuable — the difference between kr 3.00/kWh (saved) and kr 0.80/kWh (exported) drives the battery investment case.

The Formula

Monthly kWh = Monthly Bill ÷ kr 3.00/kWh (blended retail rate) Annual production = kWp × PSH/day × 365 × 0.80 efficiency Self-consumption (hourly, no battery) = 40% of production Self-consumption (hourly, with battery) = 65% of production Self-consumption (annual legacy) = 50% of production Self-consumption savings = Self-consumed kWh × kr 3.00/kWh Hourly export income = Exported kWh × kr 0.80/kWh (spot avg + VE-bonus) Annual export income = Exported kWh × kr 0.90/kWh (incl. elafgift credit) Payback = Total cost ÷ Annual benefit

The elafgift (electricity excise tax) is approximately kr 0.76/kWh in 2026, paid by consumers on grid electricity. Under the legacy annual settlement, this is refunded for exported solar electricity, making the export rate more attractive. Under hourly settlement, VE-bonus (vedvarende energi bonus) provides a small supplement to spot price. Denmark has no dedicated solar installation subsidy in 2026, but 0% VAT does not apply — standard 25% Danish moms (VAT) applies to solar installations.

Example

Mette — Copenhagen family home, 6 kWp + 10 kWh battery, hourly settlement

Mette has a Copenhagen family home and pays kr 1,200/month. She installs 6 kWp with a 10 kWh battery under the new hourly settlement scheme.

Monthly billkr 1,200
City / PSHCopenhagen, 2.9 PSH/day
System size6 kWp
Battery10 kWh
SettlementHourly (gruppe 6)

Result

Annual production~5,109 kWh/yr
kWh per kWp~851 kWh/kWp/yr
Self-consumption rate65% (with battery)
Self-consumption savings~kr 9,963/yr
Export income (spot)~kr 1,431/yr
Total annual benefit~kr 11,394/yr
System cost (6 kWp)kr 84,000–96,000
Battery cost (10 kWh)kr 45,000
Total installed cost~kr 135,000
Payback~11.8 years
25-year net savings~kr 149,857

Under hourly settlement, 65% of production is self-consumed at kr 3.00/kWh — far more valuable than exporting at ~kr 0.80/kWh. The battery investment of kr 45,000 pays for itself by boosting self-consumption by 25 percentage points (from 40% to 65%).

FAQ

Yes — Denmark's high retail electricity prices (kr 3.00/kWh blended including taxes) make solar financially attractive despite modest sun (2.8–2.9 PSH/day). A well-sized 6 kWp system with a battery under hourly settlement typically achieves payback in 10–14 years and 25-year net savings of kr 100,000–200,000. The key insight: maximize self-consumption under gruppe 6 hourly settlement, as exported electricity earns only ~kr 0.80/kWh vs. kr 3.00/kWh saved by self-consuming.
Since April 2023, new Danish solar systems are placed in afregningsgruppe 6 (settlement group 6), which uses timesafregning (hourly settlement). Each hour your system exports surplus solar electricity, you receive the Nord Pool DK1 or DK2 spot price for that hour plus the VE-bonus (a small additional payment for renewable energy). This contrasts with the legacy annual nettoafregning, where your annual production is credited against your annual consumption at a rate including elafgift. Under gruppe 6, spot prices during peak solar production (midday summer) can be low, making self-consumption via battery storage critical.
Denmark does not have a direct residential solar installation subsidy in 2026. The VE-bonus supplements spot price for exported electricity, but is modest. Standard Danish moms (VAT) of 25% applies to solar installations. Some kommuner (municipalities) may offer local support schemes. The primary economic driver is the high retail electricity price (kr ~3.00/kWh) combined with maximizing self-consumption — the savings from avoided electricity purchases at retail price far exceed any export income.
Under hourly settlement (gruppe 6), a battery is critical because it shifts solar production from midday (when you may be out and spot prices are sometimes low) to morning and evening (when you are home and prices are higher). This increases self-consumption from ~40% to ~65%, and since each self-consumed kWh saves kr 3.00 vs. earning ~kr 0.80 in export, the difference is dramatic. A 10 kWh battery might add kr 45,000 to system cost, but the extra 25% self-consumption on a 6 kWp system generates ~kr 3,838/yr additional savings — payback on the battery alone of ~11.7 years.
Elafgift is Denmark's electricity excise tax (afgift), approximately kr 0.76/kWh in 2026, making Danish electricity one of Europe's most expensive. This high tax is exactly why solar self-consumption is so valuable — every kWh you produce and consume yourself avoids the full retail price including elafgift. Under the legacy annual settlement, exported electricity earned a refund of elafgift, making the export rate more attractive. Under hourly gruppe 6 settlement, the elafgift is not directly refunded, further emphasizing self-consumption over export.

Related Calculators

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🏠 Self-Consumption Calculator
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⏳ Solar Payback Calculator
Detailed payback period and ROI calculation.

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