NY ISO Grid CO2 Intensity
About this site
The ny-power.org site is a demonstration using kubernetes and mqtt to provide real time events from the NY Independent System Operator data. It answers the question "what is the current CO2 emissions for an additional kWh of power right now" by combining real time info and 2016 data on CO2 / MWh / fuel type burned in NY State.
The NY ISO provides near real time information about the state of the grid (example). The raw data for this is posted as a series of CSV files for public consumption at http://mis.nyiso.com/public/. These contain 5 minute resolution data, and are updated every 5 to 20 minutes. The only way to process these are to poll frequently.
The ny-power app makes it possible to access an event stream of this feed through a series of microservices.
- ny-power-pump: a polling service that polls for CSV files, and publishes these to an mqtt server
- ny-power-mqtt: an mqtt server available at 188.8.131.52
- ny-power-archive: tooling that follows the mqtt server and writes to an influx db for time series calculations
- ny-power-influx: an influx db instance for storing the data collected, and extracting the historical time series
- ny-power-api: provides example front end website which has no active polling, and updates exclusively through responding to data on the mqtt bus.
How CO2 intensity is calculated
A set of simplifying assumptions are made to approximate CO2 generation per kWh. These are documented in the github source. Like any model or simplification, these are approximations made based on the information at hand. These numbers should be used as educational information only, and not be considered definitive.