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2018 Aliso Canyon Energy Storage 2 Request for Offers (“ACES 2 RFO”)

Updated 12/7/2018

SCE is launching the ACES 2 RFO in response to Senate Bill 801, which directed SCE to solicit for a minimum aggregate 20 MW of cost-effective energy storage resources to help address electrical system operational limitations resulting from reduced gas deliverability caused by the partial shutdown of the Aliso Canyon natural gas storage facility.

Complete requirements to participate and a schedule of required submittals are contained in the RFO Instructions.

SCE reserves the right to revise this RFO Schedule at any time and in SCE's sole discretion. Respondents are responsible for monitoring the RFO Website for updates and possible amendments to the RFO, the RFO Instructions, or the solicitation process.

RFO Bidders' Conference Call

SCE will host a Bidders’ Conference Call on September 4, 2018 from 1:00 pm to 3:00 pm PPT to discuss the ACES 2 RFO process with Respondents.

Skype Link (for the presentation only) - Select “Don’t Join Audio”

Call-in Information (Participants MUST dial in to receive audio)

Number: 800-857-9632
Participant Passcode: 9308122

Following the Bidders’ Conference, a copy of the presentation and an audio recording will be posted here:

Webinar Presentation (PDF)
Webinar Recording (MP3)

RFO Documentation

Frequently Asked Questions & Contact

Additional questions about the ACES 2 RFO requirements and process should be addressed to (with the IE cc’d at and

Questions of a general nature will be posted on this website as appropriate.

ACES 2 RFO Q&A (Updated 9/26/2018)

Useful Links