National Grid - Day Ahead Demand

Day Ahead Demand
This program is used when customer bids to reduce load are accepted by the NYISO usually when day ahead electricity prices are forecast to be high. This provides economic incentives to reduce electricity demand when prices are high. Companies will supply load reduction bids that we will submit to the NYISO or aggregate with other customer bids and submit to the NYISO.

Bid submissions will include the following:

The level of reduction available, inclusive of losses.
Time period.
Customer specification for the Day-Ahead Location Based Marginal Price above which they will reduce their load.

Bids may be revised once per week, and companies can elect not to participate during any given week by submitting a 'no bid' request. If your bid is accepted by the NYISO, we will notify you by 5 p.m. prior to the day of curtailment. There are financial penalties associated with non-performance. Contact your account manager for more bidding information.

Eligibility Requirements

Interval metering is required.
Must be able to curtail at least 100kW.
Rate classes SC-2D, SC-3, SC-3A, SC-4. SC-11, SC-12.

Enrollment Forms:
Please print and complete the Form L11 - Load Curtailment (pdf) form and mail two signed copies to:

Economic Incentives
The NYISO will pay National Grid the day ahead LBMP times your bid reduction. We will pay participating customers 90 percent of the NYISO payment for their bid reduction. Payments will only be made for load reductions that are not provided from the use of on-site generation. There are penalties associated with non-compliance.

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