Request for Proposals for Renewable Energy Resources and/or Energy Storage Resources

Location:	California
Posted:	Nov 27, 2025
Due:	Jan 16, 2026
Agency:	Northern California Power Agency
Type of Government:	State & Local
Category:	X - Lease or Rental of Facilities
Publication URL:	To access bid details, please log in.

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NORTHERN CALIFORNIA POWER AGENCY

Request for Proposals for Renewable Energy Resources

and/or Energy Storage Resources

Issuance Date: November 20, 2025

Response Deadline: January 16, 2026, 12:00 P.M. Pacific Prevailing Time

Introduction

As further described in this Request for Proposals (RFP) the Northern California Power Agency

(NCPA) is soliciting competitive proposals for renewable energy projects or products consistent

with the California Renewable Energy Resources Program (Public Resources Code sec. 25740 et

seq.) and the California Renewables Portfolio Standard Program (Public Utilities Code sec.

399.11 et seq.), including amendments enacted by passage of SB 100 (De Leon 2018) and

energy storage resources and related products. RFP responses may propose (i) project

ownership by NCPA, (ii) a power purchase agreement with an ownership option or (iii) a power

purchase agreement without an ownership option.

Background

NCPA is a joint powers agency formed under the Joint Exercise of Powers Act (Government

Code Title 1, Division 7, Section 5), with the Cities of Alameda, Biggs, Gridley, Healdsburg, Lodi,

Lompoc, Oakland (acting by and through its Board of Port Commissioners), Palo Alto, Redding,

Roseville, Santa Clara, Shasta Lake, Ukiah, the Truckee Donner PUD, and BART as Members, and

Plumas-Sierra REC, as an Associate Member. NCPA was established in 1968 and assists in

meeting a variety of the wholesale energy market needs of its Members and customers, and

collectively NCPA’s Members serve nearly 700,000 electric consumers in Central and Northern

California.

NCPA is well positioned and experienced in facilitating joint ownership structures for renewable

power or other projects for the benefit of its Members. Under the terms and conditions of the

NCPA Joint Powers Agreement entered into by all Members, NCPA possesses the general

powers to acquire, purchase, generate, transmit, distribute and sell electrical capacity and

energy. Specific powers include the power to enter into contracts, acquire and construct

electric generating facilities, set rates, issue revenue bonds and notes and acquire property by

eminent domain. NCPA will consider power purchase agreements, either with or without an

option to purchase the project during the term of the agreement, and energy prepayment

structures.

Page 1 of 11

NCPA Request for Proposals

Issued: November 20, 2025

RFP Objective

NCPA seeks cost effective resources to support its Members’ Renewable Portfolio Standard

(RPS) for 2026 and beyond. This RFP seeks to find a best combination of projects or products to

deliver Portfolio Content Category 1 energy and RECs from facilities that will be RPS compliant

(pursuant to Public Utilities Code Sections 399.16 (b)(1)), compliant upon COD and throughout

the term of the agreement. NCPA’s Members have a preference for resources that qualify as

long-term contracts (pursuant to Public Utilities Code Sections 399.13 (b)(1)) with a term of 10

years or greater.

NCPA also seeks cost effective energy storage resources to support its Members’ portfolio

objectives. This RFP seeks to find a best combination of energy storage projects or related

products to: (i) achieve compliance with Resource Adequacy requirements; therefore, energy

storage resources and related products that include Resource Adequacy Benefits are preferred;

(ii) use as complementary resources to manage variability associated with Variable Energy

Resources (e.g., solar and wind resources); and (iii) provide economic support and can be used

to manage market price volatility risk.

NCPA’s Members have a preference for energy storage resources and related products that

have a capacity of 100.00 MW or less, based on current portfolio objectives. NCPA’s Members

will consider whole projects or partial projects that are consistent with this preferred capacity

target.

NCPA requires that during the term of any agreement, the Seller shall assume the risk of

maintaining and bringing the facility or project into compliance should there be a change in law

that renders the facility non-compliant with RPS. Since this is one of the critical elements of a

renewable project or product for NCPA, please describe how this risk would be assumed and

addressed by Seller.

Proposal Delivery Requirements and RFP Schedule

The RFP schedule described below is subject to change at NCPA’s sole discretion and

NCPA will attempt to notify RFP Respondents of any schedule changes via email. Any

changes will also be reflected on NCPA’s website (https://www.ncpa.com/bidding-

opportunities-and-public-notifications/request-for-proposals/). NCPA bears no liability

or responsibility to any Respondents for any changes in the schedule or for failing to

provide notice of any change in schedule.

The expected schedule for this RFP is as follows; all time is listed in Pacific Prevailing

Time (PPT):

Page 2 of 11

NCPA Request for Proposals

Issued: November 20, 2025

By no later than 12:00 P.M., Pacific Prevailing Time, on January 16, 2026, one electronic

copy of your proposal must be e-mailed to RenewableRFP@ncpa.com or delivered on

CD or USB flash drive to the address below:

Northern California Power Agency

Attention: Renewable Energy Resource RFP

651 Commerce Drive

Roseville, CA 95678

For general questions, please call the NCPA offices at 916-781-4229.

Clarification questions regarding this RFP must be in writing, addressed to

RenewableRFP@ncpa.com.

NCPA Members seek tangible and timely opportunities to add Renewable Energy Resources

and/or energy storage resources to their resource portfolios and thus will not entertain

experimental or speculative proposals.

No contact may be made with the Commission, Committee Members, or NCPA Members

concerning this Request for Proposals without prior authorization granted by NCPA.

All information received by NCPA in response to this Request for Proposals is subject to the

California Public Records Act, and all submissions may be subject to review in the event of an

audit.

Required Elements of Proposals

1. Transmittal Letter: Provide a brief statement of the Respondent's understanding of the

work to be done and commitment to perform the work as scheduled, including a summary

of any exceptions taken to the RFP requirements, statement of work, specifications, and

reference to any proposed contractual terms and conditions required by the Respondent.

An officer authorized to bind must sign the proposal on behalf of the Respondent and must

include the following declarations on the Transmittal Letter:

Page 3 of 11

NCPA Request for Proposals

Issued: November 20, 2025

“This proposal is genuine, and not sham or collusive, nor made in the interest or in

behalf of any person not herein named; the respondent has not directly or

indirectly induced or solicited any other respondent to put in a sham bid, or any

other person, firm or corporation to refrain from submitting a proposal; and the

respondent has not in any manner sought by collusion to secure for themselves an

advantage over any other respondent.”

2. Applicant Information: Provide the legal name of the company or entity making the

proposal, the legal structure or form of the entity (e.g., Corporation, or LLC), physical

address, e-mail address, telephone, and names and titles of individuals authorized to

represent the Respondent.

3. Renewable/Resource Category: Clearly identify the proposal as one or more of a

combination of the following eligible renewable energy resource electricity products or

other:

a. Wind (offshore or land based), including all air-flow technologies involving a turbine of

any type;

b. Geothermal, including all temperature gradient technologies;

c. Biomass, including dedicated waste feedstock or energy crops;

d. Biomethane, including landfill, digester gases and gas conversion or gasification

technologies where the conversion to electricity occurs on the same premises as the

source of fuel;

e. Hydro, including all mass-in-motion technologies involving fluids and hydro efficiency

improvements;

f. Solar, including all photo-voltaic and photo-optic technologies where light is directly

converted to electricity;

g. Solar Thermal, including all concentration technologies where a heat transfer medium is

used to generate electricity;

h. Municipal Solid Waste (MSW) or Waste to Energy technologies that can demonstrate

the absence of incineration and are able to obtain certification as a Renewable Resource

by the California Energy Commission;

i. Energy Storage combined with renewable energy projects (optional), energy storage

with a capacity of one half or less of the total capacity offered by the renewable

resource with a duration of at least 4 hours is required; in addition, alternative energy

storage capacity and duration options can be offered.

4. Project Details: Clearly identify the proposed project, including the following information:

a. Project Description: Project name and location, and phases of development if

applicable.

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NCPA Request for Proposals

Issued: November 20, 2025

b. Contract Quantity: In MW and GWh/year, and by project phase if applicable, including

nameplate rating and proposed amount of energy to be delivered. Please provide all

MW increment options available for the project.

c. Pricing: Please provide all pricing structure options available.

i. Variable Index Energy Price Plus Fixed Capacity/REC Price: Expressed in nominal

value (as of the year of COD) in $/MWh for the value of the capacity and RECs plus a

price based on a published market index for the value of the energy.

ii. Energy Price (variable): Expressed in nominal dollars (as of the year of COD) in

$/MWh, and itemized by cost components if applicable; the Energy Price will start

on the Commercial Operation Date (COD) and may include fixed price annual

escalation rates or index plus fixed price component.

iii. Energy Price (fixed): Expressed in nominal dollar value (as of the year of COD) in

$/MWh, with no escalation.

iv. Energy Storage Price: Expressed in nominal dollar value (as of the year of COD) in

$/MWh, as a component of a renewable project in an overall PPA and in $/kW

month for 4-hour systems (either combined with a renewable project or as a

standalone).

v. Origination Fees: Please indicate if you proposal includes any origination fees (e.g.,

brokerage fees); to the extent an origination fee is proposed NCPA prefers such fees

to be fix rate.

d. Delivery Term: Minimum term is 10 contract years and a maximum term of 20 contract

years. Please provide all delivery term options available, including seasonal and/or intra-

day delivery profile options.

e. Energy Availability: Maximum and minimum monthly capacity factors, seasonal shapes,

resource availability profile (e.g., 8760 wind profile of availability), reliability indices

(reliability of the distribution system distribution indices to potentially Forced Outage

Ratios or Planned Outage Ratios of generators), dispatchability (by unit or phase if

applicable) and scheduling requirements/limitations, if any; any rights for NCPA to

perform full or partial dispatch, and economic curtailment.

f. Buyer’s Step in Right: Include NCPA's requirement in the proposal that the Buyer may

assume or cure any default by developer in the land lease.

g. Point of Delivery (POD): Cost of transmission to a delivery point shall be included in the

Cost of Energy.

h. Generator Interconnection Status: Describe the status of any generator interconnection

requirements, including the status of which queue cluster the project may be in (if any),

whether or not the project has entered into an interconnection agreement with the host

transmission provider (e.g., LGIA, SGIA), is the generator interconnection status

contingent upon the construction of transmission upgrades (e.g., network transmission

upgrades and/or construction of interconnection facilities).

i. Permitting Status: Describe or list any permits the project will required to obtain in

order to achieve commercial operations, and the status of such permits, if any.

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This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

Request for Proposals for Renewable Energy Resources and/or Energy Storage Resources

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See also