Top 5 C++ energy-monitor Projects

Expandable-6-Channel-ESP32-Energy-Meter

13 497 3.9 C++

Hardware & Software documentation for the CircuitSetup Expandable 6 Channel ESP32 Energy Meter. Works with ESPHome and Home Assistant.

Project mention: Could use some help with our power bill | /r/electrical | 2023-07-04

Another option for multiple circuits

emonpi

1 269 6.9 C++

Raspberry Pi Based Energy Monitor. Hardware, Firmware & related software for the PI.

Project mention: Use Clean Energy Charging on Your iPhone | news.ycombinator.com | 2023-07-03

> I'd love to be able to put a wet load of laundry into my drier and press "make sure it's dry by tomorrow morning".
So, I do a bit of this myself, manually. I've got a table of appliances and wattages, both rated and measured (using a Kill-O-Watt). I also have a 6KW (max) solar panel installation, plus I'm on a time-of-data metered plan.
I try to make sure that anything that uses hot water (tankless full electric water heater; 29W rated max) like the dishwasher and shower are done between 1000 and 1400, as that's the highest time of solar insolation during the day, plus the time of day turns over to the highest tier at 1400.
I've bought but not yet installed an eMonPi (https://github.com/openenergymonitor/emonpi), so theoretically I could automate some things to optimize when to run devices. As it is though, by tracking and actively trying to reduce consumption, I've already managed to keep my electricity bill to zero for years, even putting thousands of USD back into the grid (sadly, I do not get money back from this; it only counts as credit, and resets every twelve months).
As for your specific example, I line dry my laundry. I don't see the point of running a space heater (dryer) in my garage; it usually only takes a few hours to dry where I live anyway. The only reason I still have a dryer is for down sleeping bags and coats that have to be fluffed up.

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
Split-Single-Phase-Energy-Meter

2 255 6.1 C++

Split Single-phase Energy Meter
ESP32EnergyMonitor

1 113 5.4 C++

Multiple phase DIY energy consumption monitor using ESP32 and ESPHome
ESPSense

5 42 2.7 C++

Use ESPHome to emulate TP-Link Kasa HS110 plugs, and report energy usage to your Sense Home Energy Monitor (or anything else on your network!) via ESP8266/ESP32 devices
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).