The amount of energy that is needed on the grid.
The amount of energy currently needed on the grid.
Available capacity in next hour*
Total of all resources’ maximum available MW outputs, minus current outputs. Includes spin, non-spin, and available regulation up reserves. Includes all resource types except solar, wind, demand response, and battery storage providing reserves.Calculated every 15 minutes based on Real-Time Pre-Dispatch (RTPD).
Available capacity in next 4 hours*
Total of all resources’ maximum available MW outputs, minus current outputs. Includes the available capacity in the next hour and remaining battery storage ,assuming 100% state-of-charge (SOC).Calculated every 60 minutes based on Short-Term Unit Commitment (STUC).
Total of all spin, non-spin, and available regulation up, including battery storage providing reserves. Included in available capacity in next hour. Calculated based on Real-Time Pre-Dispatch reserve requirements.
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Maximum amount of energy needed in the day.
*Capacity varies due to startup, constraints, outages, congestion, and emergencies. Does not include solar and wind or Demand Response resources.
Energy expected to be needed during the day, based on historical system loads and temperatures. The day-ahead forecast is determined 24 hours before the energy is needed. The hour-ahead forecast is determined an hour before the energy is needed.
Forecasted peak 5-minute average
Maximum amount of energy expected during the day.
Tomorrow’s forecasted peak
Maximum amount of energy expected tomorrow.