IID Gateway Substation Upgrade doubles capacity, boosts Calexico power reliability for about 4,000 homes
The Imperial Irrigation District unveiled a $4.9 million upgrade to the Gateway Substation in Calexico on March 6, 2026, doubling capacity and boosting reliability to serve about 4,000 homes amid rising EV, housing and industrial demand.
Key takeaways
- $4.9 million project added a second bank of feeders and a high‑capacity transformer, doubling output to serve ~4,000 homes.
- Redundancy: the upgrade provides the long‑missing backup transformer capability at Gateway, reducing single‑point failures.
- Timeline: transformer ordered three years prior; construction took ~six months; older 63‑year unit is scheduled for replacement within a year.
- Part of a larger plan: fits within IID’s Powering Our Community Together program—270+ projects, $3.34 billion over 15 years.
What was done and why it matters
Project scope: IID added a second bank of circuit feeders and installed a new high‑capacity transformer at the Gateway Substation, located at the northeast corner of Pan American St. and Rood Rd., Calexico. The change doubles the substation’s capacity and introduces critical redundancy the site lacked for decades.
The new configuration lets IID transfer power between circuits and shift load from the west side of Calexico to the upgraded station—improving outage response and routine maintenance flexibility.
Voices at the ribbon-cutting
“We’ll be able to pick up a lot more load now with this substation,” said Deputy Energy Manager Paul Rodriguez, noting the previous transformer was 63 years old and had no backup.
Division 4 Director Lewis Pacheco said the upgrade “bolsters the grid for future development and increased load.” IID General Manager Jamie Asbury said the project “makes sure that we have the capacity to serve our customers when we have catastrophic events.” IID Chairwoman Karin Eugenio described the work as a resilience measure to better manage demand and maintenance needs.
Calexico Mayor Victor Legaspi emphasized local benefits—improved reliability, support for development, and reduced outage risk for neighborhoods and businesses. Landowner John Pierre Menvielle noted the improvements will aid residential and industrial growth near his property.
Context: past outages and the push to modernize
IID officials cited recent storm‑related outages—most notably impacts after Tropical Storm Mario (September 2025) that affected more than 2,000 residents—as evidence of vulnerabilities in aging equipment and distribution lines. The Gateway upgrade is one of many projects intended to reduce outage impacts and improve valley‑wide resilience.
The work supports IID’s long‑term strategy, Powering Our Community Together, which lists over 270 projects and a $3.34 billion budget over 15 years to modernize infrastructure, expand storage, replace aging transformers and breakers, and repower plants to support renewables.
Ongoing and planned work across the valley
At the ceremony, Rodriguez outlined additional projects: multiple new substations, replacement of roughly 8,000 power poles over five years (using steel or larger wood poles), breaker replacements at substations to reduce single‑point failures, and upgrades to add redundancy and speed repairs.
Budget and timelines
Cost: $4.9 million. The transformer had long lead times—it was ordered about three years earlier and installed as soon as it arrived. Construction took roughly six months and concluded with a March 6, 2026 ribbon‑cutting.
The older transformer—in service for 63 years—is slated for replacement within the coming year so the substation will have two modern transformers and full transfer capability if one unit fails.
Investigative note: redundancy, reliability and future demand
The central technical gain is redundancy. Without a backup transformer, failures forced long outages and limited maintenance options. Adding a second bank of feeders and a new transformer lets IID move power between lines and stations—critical as electrification, EV adoption, housing, and industrial growth raise local demand.
IID’s broader program ties local upgrades like Gateway to valley‑wide resilience through multi‑year investment and infrastructure replacement to reduce outage risk and improve response times.
Implications for The Imperial Valley
Economic impact
Increased power capacity supports new housing and industrial projects, making sites more attractive to developers and reducing economic costs of outages for small businesses and agricultural operations.
Political consequences
Local leaders gain tangible infrastructure progress to cite in debates about growth and resilience. Citizens and officials will monitor IID’s pace in delivering other projects from its $3.34 billion plan.
Social effects
Fewer and shorter outages improve daily life, reduce disruptions to schools and health care, and protect vulnerable residents who depend on electrically powered medical equipment or refrigerated medicines.
Cultural relevance
Infrastructure projects like this resonate in the Imperial Valley, where agriculture and cross‑border commerce depend on steady utilities. Preventing frequent outages aligns with community priorities around stability and local growth.
Practical applications for residents
- Short term: expect fewer outages tied to transformer failures in the Gateway area and more stable service during storms.
- Medium term: replacement of the old transformer and continued pole and breaker upgrades will lower the chance of prolonged outages and speed restoration.
- Long term: increased capacity will accommodate electric vehicles, new housing, and light industrial growth without immediate disruptive overhauls.
Sources and further reading
- KYMA coverage: “IID unveils Gateway Substation upgrades in Calexico”
- IID news release on Gateway Substation completion
- IID “Powering Our Community Together” plan overview
Reporting by Times Media Service; coverage based on IID releases and local reporting.
