The Imperial Irrigation District (IID), a key provider of electric power to the Coachella Valley, faces significant infrastructure challenges amid growing demand from new residential and commercial developments. In response, local communities and IID are partnering to find innovative funding solutions for new power infrastructure. These efforts come against a backdrop of historical tensions over governance and energy capacity limitations.
The utility offers electricity under a 99-year agreement with the Coachella Valley Water District initiated in 1934, but that contract is set to expire in 2033. The Coachella Valley Energy Commission (CVEC) was formed by the IID board in 2021 to develop long-term energy service plans, and the Coachella Valley Power Agency (CVPA) was created as a joint powers authority in May to facilitate initiatives and cooperation between IID and eastern valley municipalities. The concept for the CVPA originated with CVEC, an advisory group initiated by IID to assess governance and energy needs for the Coachella Valley. A resolution passed by CVEC included recognition of the Coachella Valley Association of Governments (CVAG) as the appropriate administrative body to launch and manage the new agency during its startup phase. CVAG currently administers two other regional JPAs, including Desert Community Energy (DCE) and the Coachella Valley Conservation Commission (CVCC), under similar staffing arrangements.
Infrastructure and Capacity Constraints
The eastern Coachella Valley, including the cities of Indio, La Quinta, Coachella, unincorporated areas of Riverside County, and parts of the central region – including the northern portions of Palm Desert and Rancho Mirage – has experienced rapid growth, translating into significant increases in energy demand. IID, a vertically integrated utility managing generation, transmission, and distribution assets, has seen its existing capacity, developed mainly between 2003 and 2009, nearing exhaustion.
IID has identified approximately $1.5 billion in necessary upgrades across its territory, covering approximately 6,500 square miles, to meet the anticipated demand. Developers planning projects east of Washington Street have found it increasingly challenging to secure electric power for their projects without paying tens of millions of dollars for new substations – costs that are prohibitively high for individual entities.
While there are many situations in the eastern Coachella Valley where funding solutions for developers are lacking, and thus development is at a standstill, there is some significant progress in several instances highlighted below.
During an extensive presentation to the recently formed CVPA on July 28, IID officials emphasized that advancing the region’s power buildout demands rigorous planning and coordination, with utility engineers working closely alongside city managers and local planning departments. While they have strong visibility into proposed projects, the core challenge is determining where development will coalesce so investments can be sequenced for the greatest regional benefit. They point out that it’s no small task given the diversity of needs, timelines, and funding readiness across multiple large projects. The new collaborative forum helps align perspectives on likely “first movers” and target infrastructure where it will have the most impact. Ultimately, the constraint isn’t a shortage of energy on the market, they stated, but the capacity of wires and the grid itself to carry more electricity – precisely what these initiatives aim to expand.
Innovative Local Partnerships: Palm Desert and Rancho Mirage
In a landmark example of collaboration, Palm Desert, Rancho Mirage, Riverside County, IID, the H.N. and Frances Berger Foundation, and local developers are jointly funding a new $27.3 million substation in Thousand Palms. The cities have committed significant upfront funds, with Rancho Mirage initially allocating around $2 million and Palm Desert committing approximately $5 million, expecting to recoup these expenses through reimbursements from developers and community facility district bonds.
Rancho Mirage City Manager Isaiah Hagerman has stressed the critical nature of the substation: “If we don’t do this, then those projects never get built.” Planned developments relying on the new substation include affordable housing units and expansions of educational facilities at the California State University-San Bernardino Palm Desert campus.
Indio Electric Financing Authority
In a separate but similarly innovative move, Indio formed the Indio Electric Financing Authority, a Joint Powers Authority (JPA) partnership with IID. Funded by a surcharge collected from IID customers within Indio, the initiative will finance crucial upgrades to existing substations and build new facilities, dramatically enhancing electrical service capacity.
Projects under this partnership include substantial new substations such as the Avenue 40 and Northgate projects, totaling approximately $38.5 million. Additionally, significant upgrades are planned for substations at Avenue 42 and Dr. Carreon Drive, adding substantial capacity to meet current and future needs. IID Board Member Alex Cardenas has hailed this partnership as “monumental,” reflecting a new era of proactive cooperation.
Moving Forward
With additional substations and upgrades slated across the valley, discussions involving cities like La Quinta, developers, and IID continue actively. The structured cost-sharing arrangements and proactive partnerships are viewed as necessary steps to break historical gridlock, allowing critical infrastructure projects to proceed and supporting ongoing and future economic and residential growth in the Coachella Valley.
However, even with the creation of the CVPA and the funding initiatives moving forward in Indio and Palm Desert/Rancho Mirage, Riverside County Supervisor V. Manuel Perez has noted in a past discussion about power in the eastern valley, “This is years already in the making. This is the big topic when it comes to development, and it is limiting growth now. It’s a huge priority to fix the problem. This is not just a little pocket; this is regional. And we need to address this in a regional way.”
Detailed Project Overview: IID Consultant Presentation to CVPA
At the July 28 meeting of the CVPA, IID consultant Cameron Butcher outlined a detailed series of infrastructure projects and initiatives underway to address the pressing power capacity needs in the region. The projects presented range from Thousand Palms to the southern boundary of La Quinta, promising to deliver substantial new capacity and infrastructure enhancements to meet current and future demand.
Indio Electric Financing Authority (IEFA) Projects:
The IEFA’s initiative is projected to add approximately 157 megavolt-amperes (MVA), enough electricity to power roughly 16,000 single-family residences. Butcher noted these upgrades and additions are scheduled to be in service by the second quarter of 2026.
Cook Street Substation Project:
Located in Thousand Palms, the Cook Street Substation features scalable infrastructure with initial phases including two transformers and room for future expansion. Upon completion, it will add between 63 to 120 MVA of capacity, potentially supporting 6,000 to 12,000 residences, alongside significant commercial developments.
Avenue 58 Substation Project:
In southern La Quinta, IID has identified an opportunity to install distribution infrastructure at its existing transmission facility at Avenue 58, adding 40 MVA, enough for about 4,000 homes. This strategically important but challenging project utilizes existing transmission infrastructure, addressing critical short-term needs and enabling stalled residential projects to move forward.
Marshall Substation Upgrade:
Targeting the City of La Quinta, particularly along the busy Washington Street corridor, the Marshall Substation upgrade involves replacing a 28 MVA transformer with a larger 50 MVA unit. This district-driven initiative, fully funded by IID upfront with costs later recovered from new development, aims to provide increased reliability and capacity sufficient for around 1,800 additional homes. It will also significantly enhance electrical reliability for La Quinta’s SilverRock resort project.
Avenue 52 Feeder Circuit Enhancement:
Driven by capacity constraints in the La Quinta area, particularly affecting developments such as the Hideaway community and infrastructure projects by the Coachella Valley Water District (CVWD), this initiative adds approximately 4.6 MVA of capacity, equivalent to powering 460 homes. The project, currently 85% complete, has already successfully unlocked service potential for stalled residential units and new infrastructure.
IID officials emphasized that advancing the region’s power build‑out demands rigorous planning and coordination, with utility engineers working closely alongside city managers and local planning departments. While they have strong visibility into proposed projects, the core challenge is determining where development will coalesce so investments can be sequenced for the greatest regional benefit – no small task given the diversity of needs, timelines, and funding readiness across multiple large projects.
Strategic Vision and IID Investment: Comments from IID General Manager Jamie Asbury
Following Butcher’s presentation, IID General Manager Jamie Asbury reinforced the utility’s commitment to overcoming infrastructure bottlenecks and highlighted IID’s proactive stance on infrastructure investments and reliability.
Asbury emphasized that “the hardest part of development is the actual development phase,” particularly citing complex challenges such as environmental clearance and securing rights-of-way, which have affected timelines at Cook Street and other locations. She confirmed IID’s strategic move to pre-order transformers, critical equipment with lead times approaching 16 to 19 months, to avoid future delays.
Addressing reliability, Asbury described IID’s traditional approach of retaining 20% latent capacity within the system to ensure operational resilience, an essential strategy for quickly managing outages and enhancing service dependability. She suggested a nuanced cost-sharing philosophy, indicating that IID may seek to adjust how the cost of maintaining this critical reliability margin is recovered from future developments.
Citing the successful “test case” of the Avenue 52 Feeder Circuit, Asbury noted IID’s upfront investment of approximately $700,000, which effectively facilitated development in previously stagnant projects. “Infrastructure is what solves the issues we’re dealing with today,” she concluded, highlighting IID’s readiness to continue investing proactively, leveraging recent rate adjustments that will enable greater flexibility in addressing community needs.
Coordinated Approach to Regional Power Needs
Supervisor Manuel Perez welcomed the IID’s initiative but called for increased transparency and coordination with Riverside County. He emphasized the necessity of parallel efforts to engage developers who have delayed projects due to uncertainty about infrastructure availability, advocating for clearer communication and strategic collaboration.
The comprehensive update at the CVPA meeting underscored the urgency and complexity of power infrastructure expansion in the Eastern Coachella Valley, demonstrating how coordinated regional approaches can turn significant infrastructure challenges into viable solutions for sustained economic and residential growth.
