Resilience against Long-Term Outage as determined by the Ratio of Resilient Nameplate Capacity to State Consumption.
Resilient Nameplate Capacity: The sum of dispatchable resources and resources with sufficient on-site fuel storage. Natural gas plants are only included in this total if they have 2+ pipeline connections, or if they have an alternative energy source they can switch to.
State Consumption: The sum of electricity sales by utilities for the selected year.
$$\frac{Resilient\;Natural\;Gas+Nuclear+Hydro+Pumped\;Storage+Geothermal+Petroleum+Coal}{ State\;Electricity\;Consumption}$$
Carbon Intensity of generation plants, which is the Sum of Carbon Emissions divided by the Electricity Generation.
Carbon Intensity: Determined by multiplying fuel-specific carbon emissions per mmBTU and the thermal output associated with that fuel.
$$\frac{\sum_{Fuel} (CO_2\;Factor* Thermal\;Output) }{Generation}$$
Reliability as determined by SAIDI (System Average Interruption Duration Index)
SAIDI: The Sum of all Customer Outages in minutes over the total number of customers served.
$$\frac{\sum Outages}{\sum Customers}$$
Electricity Cost as determined by the Average Price per Kilowatt Hour for electricity sales within the state.
States are graded for each category, with first earning 100%, last earning 50%, and grades distributed in between according to the following scale.
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