Load Response & Energy Curtailment
Load Response

Turn Curtailment Ability into Opportunity

Load Response is a diverse offering of solutions that can be combined to offset your overall energy costs. For businesses able and willing to curtail, or reduce, energy use in response to various grid conditions, Load Response programs can deliver revenue and energy offsets while helping to minimize the risk of sudden disruptions on the power grid.


Bringing Clarity to Voluntary Curtailment

With the variety of Load Response programs across the country, along with their unique requirements, you need an energy provider who has the marketing understanding, the stability and know-how to help you maximize the value of your participation. Constellation will work with you or your consultant to help you understand the alternatives and make the best decision for your company based on your ability to curtail energy.

Constellation offers a variety of Load Response options for businesses as part of a total energy management strategy. For more information, please see our whitepaper here.

Load Response Benefits

  • Monetary compensation beyond energy savings
  • Cost reductions via lower utility charges and effective load management
  • Improved emergency preparedness with advance notice of grid stress
  • Valuable recognition as a good corporate citizen
  • Greater understanding of facilities and energy usage
  • Opportunity to fund other projects with program revenues

Market Load Response Options

Capacity / Demand Response Programs

Businesses in select regions can earn financial incentives by curtailing electricity consumption when demand exceeds supply. Constellation helps manage and aggregate our customers' load during these high-capacity demand periods.
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Ancillary Services

Businesses who can commit to quick-demand reductions in response to sudden, short-term grid instability, due to abnormal losses of generation or transmission may be able to participate and earn through Ancillary Services programs. These reductions help rebalance the grid and allow operators to deliver a more reliable and efficient supply of electricity to customers.
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Economic Programs

Participants can assume the role of "generator" by offering up their ability to curtail energy use at times of high market prices. Businesses have opportunities to bid in proposed load reductions and receive payment if they are awarded.
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Energy Efficiency

Your energy efficiency projects (whether already implemented, in progress or even contemplated) may have value that goes well beyond simple energy savings. Now you can maximize the return on your energy investment by working with Constellation to monetize your projects as a qualified resource with PJM for up to four years. In some cases, projects may earn utility rebates in addition to PJM payments.
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Constellation Load Response Options

Constellation Peak Response

Available exclusively from Constellation for existing power customers, this program allows businesses to voluntarily curtail energy use at predicted system peaks and reduce their Peak Load Contribution (PLC), a component that on average makes up 20-30 percent of their bill for the following year.
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Constellation Price Response

Price Response is a unique service designed to help you unlock the economic power of your electric supply agreement with Constellation by giving you an opportunity to benefit from price spikes in the wholesale power markets. During times of high electricity prices, Constellation will pay you to use less power.
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Constellation Rate Response

Rate Response is an exclusive offering for commercial electric customers choosing Constellation as both their Load Response provider and power supplier. Rate Response allows our customers to include the value of their participation Load Response programs on their power bills.
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Control the Balance of Power with VirtuWatt®

VirtuWatt is an intuitive, online technology solution for managing and analyzing energy usage. This easy-to-use dashboard enables businesses to implement cost-saving energy strategies and automate participation in load response programs.

Users can customize VirtuWatt using several dynamic portals and functions to easily:

  • Track real-time and historic usage information across multiple facilities and regions
  • Compare current usage to program targets
  • Monitor total grid load and pricing per zone
  • Bid in to Economic and Ancillary Programs
  • Adjust settings of building lights, thermostats and more (in conjunction with a building automation system)
  • View accurate weather forecasts to predict possible demand surges

Customers can access VirtuWatt from desktop computers and mobile devices, including Apple- iOS and Droid devices.
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Areas We Serve

Do we serve your state? Click below to view our interactive map.


Get Started

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Energy Management Tools


Monitor energy usage and load curtailments with this free online application.
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Case Studies