Acquiring Energy

Procuring new energy supply

To meet the anticipated energy needs of our region in the coming years, PSE must acquire new sources of energy. We have several strategies for acquiring additional energy, approaches that meet your long-term demands for electricity and natural gas while keeping your rates as low as possible.

As a leader in renewable energy, we are actively developing additional renewable resources that protect both your pocketbook and the environment.

Another important strategy is to continue helping homes and businesses save energy. Over the next 20 years, our energy-efficiency programs are expected to help customers save more than 500 megawatts of electricity. Those savings are equivalent to the output of four average-sized natural gas-fired power plants.

We also identify new energy resources by issuing formal requests for proposals (RFP). This open-bidding process helps us purchase power, acquire existing power plants and develop new facilities at the most competitive prices.


Our RFP process

Pursuant to Washington Utilities and Transportation Commission rules (WAC 480-107), following the biannual updating of PSE's Integrated Resource Plan, PSE files a Request for Proposals when the plan identifies a resource need within the next three years.


2020 Demand Response and All-Source RFPs Update

On October 15, 2020, the Washington Utilities and Transportation Commission (“WUTC”) held an open meeting in which it granted a motion from Puget Sound Energy (“PSE”) to withdraw its draft 2020 Demand Response and All-Source RFPs in dockets UE-200413 and UE-200414, respectively. Consistent with the requirements of the Commission’s Final Order in these dockets, PSE must file its next draft All-Source and system wide electric Demand Response RFPs no later than April 1, 2021. The full text of the Commission’s Final Order may be found in the WUTC dockets referred to above.

PSE submitted the motion on September 8, 2020, and has been providing stakeholders with periodic updates, which can be found in the links below and on the WUTC web site in the dockets referenced above.

  • August 12, 2020 Stakeholder Update
  • August 26, 2020 Stakeholder Update
  • September 3, 2020 Stakeholder Update
  • September 8, 2020 Stakeholder Update
  • PSE will provide interested parties with information about its planned 2021 RFPs as it becomes available. Notifications will be sent by email to PSE’s stakeholder notification list and will be posted to this webpage. Interested parties may opt in to receive stakeholder notifications by contacting Parties interested in learning about PSE’s integrated resource planning process, which informs and guides the RFP process, can click 2021 Integrated Resource Plan for more information.

    2018 Demand Response and All-Source RFPs Update

    PSE received nearly 100 proposals in response to its 2018 All-Source and Demand Response RFPs from a variety of resource alternatives. This is the largest response to a PSE All-Source RFP to date. Many proposals included multiple offer options with variations in pricing, offer structure, term start and duration, and transmission delivery points. Some proposals offered hybrid options, pairing storage with wind or solar resources.

    So far, PSE has issued three press releases announcing the execution of contracts from the 2018 RFP. The RFP process remains ongoing. PSE will update this site if and when new resources are contracted.


    2018 All-Source and Demand Response Proposals

    The following table summarizes the resources PSE received in response to its 2018 Demand Response and All-Source RFPs by resource type and size.

    Resource type

    # Proposals

    Size range
    (MW / RECs, roughly)



    35 – 290 MW



    45 – 500 MW

    Storage – battery


    10 – 200 MW / 30 – 800 MWh

    Storage – pumped hydro


    330 – 500 MW



    10 – 55 MW

    Natural Gas-fired Gen.


    50 – 620 MW



    15-25 MW

    Hydro - run of river


    40 MW

    System PPA / Call Option


    100 MW

    Unbundled RECs


    35,000 - 130,000 RECs

    Demand Response


    20-40 MW





    Contact information

    Questions or comments about the Demand Response RFP may be sent to Questions about the All-Source RFP may be sent to

    Reporting information

    PSE's Code of Conduct for voluntarily submitting energy data to index developers.