GFO-23-311 – Advancing Precipitation Enhancement in California

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Opportunity Type:
  • Grant
Last Updated:



The purpose of this solicitation is to fund applied research to increase California’s hydropower generation through precipitation enhancement (cloud seeding). Research funded by this solicitation will foster cost-effective, robust approaches to manage anticipated needs for zero-carbon, fast-ramping resources in the context of a rapidly evolving energy system and climate change.


The proposed research contributes to implementation of the Electric Program Investment Charge (EPIC) 2021-2025 Investment Plan and responds to the strategic objective: “Inform California's Transition to an Equitable, Zero-Carbon Energy System that is Climate-Resilient and Meets Environmental Goals” (Chapter 7). Specifically, this solicitation supports the topic 44 within the Climate Resilience Initiative: “Integrating Climate Resilience in Electricity System Planning.”

Hydroelectric power is an important source of zero-carbon, dispatchable power in California. It is a critical element of the state’s electricity system and in-state generation, providing peaking reserve, spinning reserve, and load following capacity, as well as transmission line support (Somani, et al., 2021). The percentage of the state’s electricity supplied by hydropower varies, as hydropower resources are strongly dependent on magnitude and timing of snowmelt runoff and rainfall. Between 2012 and 2021, hydropower (including in-state generation and imports) provided an average of 9 percent of California’s total energy mix (California Energy Commission 2022).

As the state continues to contend with drought and other climate-driven impacts on water and hydropower resource availability, as well as develop more sustainable water management practices (California Water Action Plan, 2014), the proposed research will support opportunities for increasing and sustaining hydropower generation. Specifically, the research will contribute to more effective precipitation enhancement (cloud seeding) strategies.

Eligibility Requirements

Eligible Applicants:

  • Business
  • Individual
  • Nonprofit
  • Other Legal Entity
  • Public Agency
  • Tribal Government

This solicitation is open to all public and private entities with the exception of local publicly owned electric utilities.

Eligible Geographies:

No local publicly owned electric utilities.

Matching Funding Requirement:

Match funding is required in the amount of at least 5% of the requested CEC funds.

Important Dates

The date (and time, where applicable) by which all applications must be submitted to the grantmaker. Time listed as “00:00” equates to midnight.
The date on which the grantor expects to announce the recipient(s) of the grant.
Week of 06/10/2024
The length of time during which the grant money must be utilized.
Until funds expire

Funding Details

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Grant opportunities representing multiple awards may offer awards in the same amount or in varied amounts. Some may wish to wait until the application period closes before determining per-award amounts; in this case, a value of “Dependent” will display.
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  • State

Funding Source Notes:

EPIC Program

The manner in which the grant funding will be delivered to the awardee. Funding methods include reimbursements (where the recipient spends out-of-pocket and is reimbursed by the grantor) and advances (where the recipient spends received grant funds directly).
  • Reimbursement(s)

Funding Method Notes:


How to Apply

State agencies/departments recommend you read the full grant guidelines before applying.


For questions about this grant, contact:
Natalie Johnson, 1-916-891-8523,