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PowerCalc

Custom component for Home Assistant to estimate the power consumption (as virtual meters) of lights, fans, smart speakers and other devices, which don't have a built-in power meter.
https://github.com/bramstroker/homeassistant-powercalc

Category: Energy Systems
Sub Category: Building Energy Monitoring

Keywords

consumption energy-consumption energy-monitor energy-monitoring hacktoberfest hacs home-assistant home-assistant-hacs homeassistant iot metering power smart-home sustainability virtual-sensors

Keywords from Contributors

hue-lights varta-storage varta climate hacs-integration sensor thermostat tuya weather lovelace

Last synced: about 20 hours ago
JSON representation

Repository metadata

Home Assistant Custom component to calculate estimated power consumption of lights and other appliances

README.md

Version
Downloads
Contributors
hacs_badge
hacs installs
Coverage Status

⚡ Turn any device into an energy monitor, no smart plug required

PowerCalc brings energy monitoring to devices that normally don’t support it.

  • Lights, fans, media devices, and more
  • No extra hardware needed
  • Works seamlessly inside Home Assistant

Instead of measuring power directly, PowerCalc accurately estimates consumption using smart models based on real measurements.

See it in action

Preview

Why use PowerCalc?

  • 💰 Save money - no need to buy smart plugs for every device
  • 🔍 Full visibility - track energy usage across your entire home
  • ⚡ Accurate estimates - based on real device measurements
  • 🔌 Works out of the box - huge built-in profile library
  • 🧠 Advanced modeling - brightness, color, fan speed, and more

How it works

PowerCalc creates virtual power sensors in Home Assistant.

For example:

  • 💡 Lights → power based on brightness, color, temperature
  • 🌀 Fans → power based on speed
  • 📺 Other devices → configurable strategies or measured profiles

You get realistic energy data — without physically measuring every device.

Get started

🌍 Community & contributions

PowerCalc is powered by a growing community:

  • Contribute new device profiles
  • Share measurements
  • Improve accuracy for everyone

⭐ Support the project

If PowerCalc helped you:

🙌 Powered by

JetBrains logo.

Owner metadata

GitHub Events

Total
Last Year

Committers metadata

Last synced: 6 days ago

Total Commits: 5,987
Total Committers: 338
Avg Commits per committer: 17.713
Development Distribution Score (DDS): 0.393

Commits in past year: 1,602
Committers in past year: 86
Avg Commits per committer in past year: 18.628
Development Distribution Score (DDS) in past year: 0.428

Name Email Commits
Bram b****n@e****l 3633
pre-commit-ci[bot] 6****] 373
renovate[bot] 2****] 351
GitHub Actions 4****] 340
CV d****t 90
@RubenKelevra c****d@g****m 74
Crowdin Bot s****t@c****m 48
Michal Bartak m****l@g****m 31
Jarod2801 J****1 26
Thorsten1982 T****N@g****m 25
Alexandre Bertrand a****d@i****o 25
Jort 6****l 20
Linus Nordin l****n@g****m 19
Stefan Gries 1****s 18
Daniel O'Connor d****r@g****m 18
Dr-Seltsam 4****m 18
Marius 3****b 16
dewbot6 d****s@c****t 15
CM000n s****e@g****m 14
nepozs 5****s 14
Brian Egge b****e@g****m 14
Josh Barnard b****e 12
alvinchen1 2****1 12
ltloopy 5****y 12
LtKowalski 2****i 10
Marcus Voß 4****6 10
Miguel m****2 10
misa1515 6****5 10
Jonas Dambacher j****r@b****e 10
Tim 7****l 9
and 308 more...

Committer domains:

Issue and Pull Request metadata

Last synced: 6 days ago

Total issues: 385
Total pull requests: 2,157
Average time to close issues: 14 days
Average time to close pull requests: 3 days
Total issue authors: 231
Total pull request authors: 188
Average comments per issue: 4.73
Average comments per pull request: 1.32
Merged pull request: 1,857
Bot issues: 7
Bot pull requests: 755

Past year issues: 54
Past year pull requests: 251
Past year average time to close issues: 9 days
Past year average time to close pull requests: 4 days
Past year issue authors: 42
Past year pull request authors: 37
Past year average comments per issue: 3.44
Past year average comments per pull request: 0.96
Past year merged pull request: 161
Past year bot issues: 0
Past year bot pull requests: 108

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/bramstroker/homeassistant-powercalc

Top Issue Authors

  • bramstroker (35)
  • michalk-k (21)
  • RubenKelevra (16)
  • Mariusthvdb (16)
  • dagobert (10)
  • erkr (10)
  • bcjmk (6)
  • Stephan-4711 (4)
  • Largelos (4)
  • KlaraJa (4)
  • puetsch (3)
  • TheSerapher (3)
  • AlexKusnezov (3)
  • Gloomyeye (3)
  • github-actions[bot] (3)

Top Pull Request Authors

  • bramstroker (642)
  • renovate[bot] (507)
  • github-actions[bot] (142)
  • pre-commit-ci[bot] (106)
  • RubenKelevra (61)
  • dagobert (60)
  • michalk-k (23)
  • dewbot6 (16)
  • stuartp44 (15)
  • brianegge (11)
  • CloCkWeRX (11)
  • Dr-Seltsam (11)
  • Mariusthvdb (11)
  • dxmnkd316 (11)
  • barndawgie (11)

Top Issue Labels

  • bug (233)
  • enhancement (108)
  • Stale (54)
  • group (32)
  • config-flow (31)
  • model-library (25)
  • question (15)
  • autodiscovery (13)
  • measure-tool (9)
  • energy-sensor (8)
  • lut strategy (8)
  • fixed strategy (5)
  • powerprofile (4)
  • documentation (3)
  • multi_switch strategy (3)
  • translations (3)
  • utility-meter (3)
  • linear strategy (2)
  • daily-fixed (2)
  • wled strategy (2)
  • subprofile (2)
  • dependencies (1)
  • profile-website (1)
  • ha-deprecation (1)
  • composite strategy (1)
  • workflows (1)

Top Pull Request Labels

  • powerprofile (516)
  • dependencies (505)
  • bug (340)
  • enhancement (256)
  • lightmodel (146)
  • measure-tool (87)
  • documentation (58)
  • Stale (16)
  • config-flow (9)
  • translations (7)
  • model-library (6)
  • utility-meter (6)
  • release (5)
  • multi_switch strategy (4)
  • autodiscovery (4)
  • group (3)
  • light-model (2)
  • daily-fixed (2)
  • github-action (2)
  • playbook (2)
  • skip-changelog (2)
  • generic-model-id (2)
  • subprofile (2)
  • linear strategy (1)

Package metadata

nixpkgs-unstable: home-assistant-custom-components.powercalc

Custom Home Assistant component for virtual power sensors

proxy.golang.org: github.com/bramstroker/homeassistant-powercalc

Dependencies

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Score: 13.129577294422525