Strømkalkulator for Home Assistant (Marketplace integration)

Installs: 71 sharing analytics
GitHub stars: 9
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: v1.18.1, October 18, 2026
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: stromkalkulator
Source: github.com/fredrik-lindseth/Stromkalkulator
Issues: Report an issue

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation.

Screenshots From the README of fredrik-lindseth/Stromkalkulator.

About

Strømkalkulator calculates grid rent, electricity subsidy and Norgespris for Home Assistant. It adds sensors for day and night energy tariff, capacity tier, peak demand, government fees, electricity subsidy and spot price after subsidy, plus binary sensors for capacity warning and whether Norgespris or the subsidy is active. Input comes from a power meter, a spot price sensor and optionally an energy meter, a provider price sensor and an export power sensor for solar panels. A button generates an invoice verification report, and repair notices flag problems such as a frozen energy meter or outdated spot prices. Grid company, property type and tax zone are chosen in the UI, and a custom grid company can use its own tariffs and capacity tiers. It runs locally.

Automatic summary of the README and code of fredrik-lindseth/Stromkalkulator. Something wrong, or are you the maintainer and want your own text here? Get in touch

Supports

Works locally Talks to your devices on your own network. No vendor cloud in between.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.

Provides

Sensors

Setting it up

Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.

Strømkalkulator

Grid company
Property typeResidence: Subsidy up to 5000 kWh/month, Norgespris up to 5000 kWh/month. Holiday home: No subsidy, Norgespris up to 1000 kWh/month. Holiday home (permanent residence): Same as residence (Regulation § 11).
I have NorgesprisEnable if you have ordered Norgespris at Elhub (minside.elhub.no), not from your grid company or electricity provider. Fixed price (50 øre/kWh in southern Norway, 40 øre in northern Norway) for the first 5000 kWh per month (1000 kWh for holiday homes). Consumption above the limit is billed at spot price.

Select sensors

Power meter (W)Sensor showing current power consumption in watts, e.g. from HAN port, Tibber Pulse, or P1 meter.
Spot price sensor (NOK/kWh)Sensor with current spot price in NOK/kWh. Usually 'Current price' from the Nord Pool integration.
Spot price sensor delivers prices incl. VATLeave off for HA-core nordpool integration (delivers excl. VAT). Turn on if your sensor already includes VAT (e.g. the older custom_components/nordpool with VAT=true, or a custom template sensor).
Energy meter sensor (kWh, optional)Cumulative kWh counter from the AMS smart meter. Recommended for exact invoice numbers. See docs/input-sensorer.md for details.
Electricity provider sensor (optional)Sensor with the total price from your electricity provider (e.g. Tibber 'Electricity price'). Only used to populate the 'Total price (electricity contract)' sensor for comparison against your actual contract. Does not affect any other calculation. Skip if you have spot price directly or Norgespris.
Export power sensor (W, optional)Power sensor for export to the grid (OBIS 2.7.0) in watts, for prosumers with solar panels only. Used to calculate export revenue and net monthly cost. Skip if you don't have solar panels.

Main fuse size

Main fuseThe rows are quoted verbatim from the grid company price list. Note that the rate can depend on system voltage (230 V or 400 V).

Custom pricing

Tax zoneDetermines VAT and consumption tax. The VAT exemption follows county, not price area: 'Nord-Norge' covers Nordland and Troms, 'Tiltakssonen' covers Finnmark and Nord-Troms (VAT Act § 6-6). Everyone else, including NO3 (Trøndelag and Møre og Romsdal), selects 'Sør-Norge' and pays 25% VAT.
Energy tariff day (NOK/kWh, excl. VAT and taxes)Grid tariff only, for daytime. Find the amount listed as 'energiledd' or 'overføring' on your price list, before consumption tax, Enova fee and VAT.
Energy tariff night/weekend (NOK/kWh, excl. VAT and taxes)Grid tariff only, for night/weekend. If your grid company uses a flat rate, enter the same value as for daytime.
Capacity tiers from your price list (optional)The fixed grid fee as your grid company lists it: one tier per row in the price list, written as a kW limit and NOK/month incl. VAT separated by a colon, with tiers separated by commas. The form is 'kW limit:NOK per month,kW limit:NOK per month', the kW limits must increase, and the top tier covers everything above the limit below it. Take the amounts from your own price list or grid invoice. No example figures are shown here: there is no price list behind 'Custom', so any figures would be another grid company's prices. Leave the field empty and capacity tier, monthly grid rent, monthly total, estimated monthly cost and accumulated cost stay unknown. That is deliberate: a guessed fixed fee looks like a price without being one.

Strømkalkulator settings

Grid company
Main fuseThe rows are quoted verbatim from the grid company price list. Note that the rate can depend on system voltage (230 V or 400 V).
Property typeResidence: Subsidy up to 5000 kWh/month, Norgespris up to 5000 kWh/month. Holiday home: No subsidy, Norgespris up to 1000 kWh/month. Holiday home (permanent residence): Same as residence (Regulation § 11).
Tax zoneSet automatically from grid company. Override only if you know you belong to a different zone.
I have NorgesprisEnable if you have ordered Norgespris at Elhub (minside.elhub.no), not from your grid company or electricity provider. Fixed price (50 øre/kWh in southern Norway, 40 øre in northern Norway) for the first 5000 kWh per month (1000 kWh for holiday homes). Consumption above the limit is billed at spot price.
Power meter (W)Sensor showing current power consumption in watts, e.g. from HAN port, Tibber Pulse, or P1 meter.
Spot price sensor (NOK/kWh)Sensor with current spot price in NOK/kWh. Usually 'Current price' from the Nord Pool integration.
Spot price sensor delivers prices incl. VATLeave off for HA-core nordpool integration (delivers excl. VAT). Turn on if your sensor already includes VAT.
Energy meter sensor (kWh, optional)Cumulative kWh counter from the AMS smart meter (OBIS 1.8.0). Recommended for exact invoice numbers. Without it, the power sensor is used with Riemann summation.
Electricity provider sensor (optional)Sensor with the total price from your electricity provider (e.g. Tibber 'Electricity price'). Only used to populate the 'Total price (electricity contract)' sensor for comparison against your actual contract. Does not affect any other calculation. Skip if you have spot price directly or Norgespris.
Export power sensor (W, optional)Power sensor for export to the grid (OBIS 2.7.0) in watts, for prosumers with solar panels only. Used to calculate export revenue and net monthly cost. Skip if you don't have solar panels.
Energy tariff day (NOK/kWh, excl. VAT and taxes)Grid rent excl. VAT and taxes. Leave the field empty to follow the grid company's price list, and the rate updates itself when the list changes. Enter a number and yours applies until you clear the field again.
Energy tariff night/weekend (NOK/kWh, excl. VAT and taxes)Grid rent excl. VAT and taxes. Same rule as for day: an empty field follows the price list, a filled one overrides it. Use the same value as day for a flat rate.
Capacity warning threshold (kW)Warn when margin to next capacity tier is below this value. Default: 2.0 kW.
Frozen energy meter threshold (hours)Warn when the energy meter has not increased for this many hours. Default: 3. Raise it for a cabin or site that sits idle for stretches, otherwise it warns every time the main breaker is off.

After setup

Grid company
Main fuseThe rows are quoted verbatim from the grid company price list. Note that the rate can depend on system voltage (230 V or 400 V).
Property typeResidence: Subsidy up to 5000 kWh/month, Norgespris up to 5000 kWh/month. Holiday home: No subsidy, Norgespris up to 1000 kWh/month. Holiday home (permanent residence): Same as residence (Regulation § 11).
Tax zoneSet automatically from grid company. Override only if you know you belong to a different zone.
I have NorgesprisEnable if you have ordered Norgespris at Elhub (minside.elhub.no), not from your grid company or electricity provider. Fixed price (50 øre/kWh in southern Norway, 40 øre in northern Norway) for the first 5000 kWh per month (1000 kWh for holiday homes). Consumption above the limit is billed at spot price.
Power meter (W)Sensor showing current power consumption in watts, e.g. from HAN port, Tibber Pulse, or P1 meter.
Spot price sensor (NOK/kWh)Sensor with current spot price in NOK/kWh. Usually 'Current price' from the Nord Pool integration.
Spot price sensor delivers prices incl. VATLeave off for HA-core nordpool integration (delivers excl. VAT). Turn on if your sensor already includes VAT.
Energy meter sensor (kWh, optional)Cumulative kWh counter from the AMS smart meter (OBIS 1.8.0). Recommended for exact invoice numbers. Without it, the power sensor is used with Riemann summation.
Electricity provider sensor (optional)Sensor with the total price from your electricity provider (e.g. Tibber 'Electricity price'). Only used to populate the 'Total price (electricity contract)' sensor for comparison against your actual contract. Does not affect any other calculation. Skip if you have spot price directly or Norgespris.
Export power sensor (W, optional)Power sensor for export to the grid (OBIS 2.7.0) in watts, for prosumers with solar panels only. Used to calculate export revenue and net monthly cost. Skip if you don't have solar panels.
Energy tariff day (NOK/kWh, excl. VAT and taxes)Grid rent excl. VAT and taxes. Leave the field empty to follow the grid company's price list, and the rate updates itself when the list changes. Enter a number and yours applies until you clear the field again.
Energy tariff night/weekend (NOK/kWh, excl. VAT and taxes)Grid rent excl. VAT and taxes. Same rule as for day: an empty field follows the price list, a filled one overrides it. Use the same value as day for a flat rate.
Capacity warning threshold (kW)Warn when margin to next capacity tier is below this value. Default: 2.0 kW.
Frozen energy meter threshold (hours)Warn when the energy meter has not increased for this many hours. Default: 3. Raise it for a cabin or site that sits idle for stretches, otherwise it warns every time the main breaker is off.

Texts from the code of fredrik-lindseth/Stromkalkulator.

Entities

Binary sensorsMeasurement data problem, Capacity warning, Norgespris active now, Electricity subsidy active now
ButtonsGenerate invoice verification report
SensorsEnergy tariff, Capacity tier, Total price (before subsidy), Electricity price per kWh, Peak demand, Average peak demand, Capacity tier (number), Capacity tier (range), Government fees, Total price (provider), Electricity subsidy, Spot price after subsidy, and 36 more

Troubleshooting

DiagnosticsDownloads a diagnostics file to attach to a bug report.
Repair noticesNotices it can show in Settings, Repairs:The energy meter is not moving, The spot price is too old to calculate with, A jump in the energy meter was discarded, Grid tariff and tax rates may be outdated, The Norgespris scheme may have ended, Your grid company has merged, Main fuse size missing, Spot price handling updated, Your grid company is split into several price areas, Check the energy tariff rate you entered, Confirm the unit on the price sensor, Choose which energiledd rate applies, Capacity tiers for the custom grid company cannot be read, Capacity tiers missing for custom grid company

From the README

Home Assistant-integrasjon som beregner faktisk strømpris i Norge, inkludert nettleie, avgifter og strømstøtte. Du får sensorer for hva strømmen faktisk koster: energiledd dag/natt, kapasitetsledd, strømstøtte, totalpris til Energy Dashboard, månedlig forbruk og kostnad, faktura-sjekk mot forrige måned, og solcelle-eksport for plusskunder.

From the README of fredrik-lindseth/Stromkalkulator, MIT License. Shortened.