Real-Time Data. Real Convenient.
ISO to Go is a free mobile application that puts real-time wholesale electricity pricing and power grid information in the palm of your hand.
- Wholesale electricity prices updated every five minutes
- Geolocation (GPS) feature to determine your local wholesale electricity price
- Snapshot of power grid system conditions
- Data on the fuels being used to generate electricity in the region
- An overview of New England’s power grid and electricity markets
Click to view at full size.
Data usage charges may apply depending on your current data plan. Read the ISO to Go terms and conditions.
Using ISO to Go
Prices Displayed As
Choose to have prices displayed in MWh or kWh:
- $ per MWh (default): Wholesale electricity is priced using MWh (megawatt-hours). A MWh equals one MW of power extended over one hour, which is enough to serve about 1,000 average New England homes for one hour.
- $ per kWh (optional): Energy usage on your monthly electric bill is shown in kWh (kilowatt-hours). Note that 1,000 kilowatts is equal to one megawatt.
Choose the range of pricing locations displayed.
Enable your device’s GPS functionality to view wholesale electricity prices for locations near you. These include:
- Cities: ISO to Go currently includes data for 150 cities in New England.
- Zones: You can also view pricing information in your zone—there are eight zones in New England. See Zone below for more information.
- The New England Hub: This is a set of prices aggregated from a centrally-located section of the grid. They’re averaged and used as a reference price for wholesale electricity trading.
Tap this field for a list, by state, of locations for which you can view wholesale electricity prices.
Click this icon when you see it for instructions or an explanation of key terms or concepts.
Click this icon if you see it for alerts on abnormal grid conditions.
Select this view to see data for all six states in the New England power grid.
This tab displays real-time wholesale energy prices.
This tab displays the forecast vs. actual “system demand” (electricity usage) for the day.
This tab describes current system conditions, including any alerts issued about abnormal grid conditions.
Select this view to see the five-minute real-time wholesale energy prices for the eight pricing zones in New England. Select each zone to also see:
- The average price for this location
- Fuels used to generate the next MW, which indicates the fuel expected to be used to generate more power if consumer demand increases by one MW
Note that each New England state represents a zone, except for Massachusetts, which is divided into three zones:
- WCMASS: Western/Central Massachusetts
- NEMASSBOST: Northeastern Massachusetts (which includes Boston)
- SEMASS: Southeastern Massachusetts
The data shown on this screen is similar to the data in the Zone screen (see above) but displays information for the specific location you’ve chosen. See GPS Location and Location List above.
Note: ISO to Go displays pricing data for 150 cities in New England. However, electricity is priced at over 1,000 spots, called “nodes,” on the electric grid.
Different types of fuels being used by New England’s power plants to generate electricity are displayed here. The fuel mix fluctuates throughout the day as consumer demand changes due to weather, time of day, and other factors. You can click each fuel type to view its profile. (Learn more about the fuel mix.) About this data:
- This data comes from generators. The actual real-time fuel mix may vary from the percentages displayed depending on minute-to-minute generation output and system operational needs.
- Electricity imported from neighboring areas is not included.
- Fuels in the renewable category include: landfill gas, methane, refuse, solar, steam, wind, and wood. Hydro is not included primarily because the various sources that make up hydroelectric generation (i.e., conventional hydroelectric, run-of-river, pumped storage) are not universally defined as renewable in the six New England states.
- A fuel may appear in the legend but not in the pie chart if it is producing a very low amount of electricity. If a fuel is not producing any electricity, it will not appear at all.
This view displays the average fuel mix used in three different consumer-demand scenarios:
- Low demand: holidays, weekends, and weekdays 11:00 p.m. to 7:00 a.m.
- Medium demand: non-holiday weekdays from 7:00 a.m. to 11:00 p.m.
- High demand: peak hour of the top five “peak demand” days from June 2011 to May 2012
Note that even if the real-time demand is similar to the scenario demand examples, the fuel mixes may not be the same (or even similar) because of system conditions, generator availability, and fuel price fluctuations.
This brief tutorial covers the basics of New England’s power grid and wholesale electricity pricing.
Explore the What We Do section to learn more about the ISO and the wholesale electricity industry in New England.