Farm Insights - simple use case.
.NET Core application running with temperature, humidity, sunlight, and soil moisture sensors. Running headless on a raspberry pi. I purchased a power meter and had the pi plugged into it. Ontology is device only.
Blog post located here - https://www.wonderfultinyfarm.com/wtfblog/software-carbon-intensity
.003 kWh per day for both the PI and the application running on the PI.
.713kg per kWh per Henry per day.
Discuss Raspberry PI and no such number exists. Used 55 Kg of CO2e, used for smartphone metrics.
Boundary identified as hardware device and application only.
Per Raspberry Pi
((.003 kWh/D x 365 days/year * .713 kg/kwh)) + 55 kg
(.003 x 365) = 1.095 - kilowatts to run the device/software for 1 year
.713 x 365 days/year = 260 - location based margin emissions for 1 year
1.095 * 260 = 284.7 - kilowatts to run the software for 1 year x location based margin emissions
((kilowatts to run the software for 1 year x location based margin emissions for 1 year) + embedded carbon of the device) for each instance of the device.
*((1.095 260) + 55 =339.7 CO2e per year