Foothills Solar Plant Hybrid

OperatingBESSSolarHybrid

Ranked #33 of 104 Solar plants in AZ#1168 of 7447 nationally

73 MW Batteries (35 MW) + Solar Photovoltaic (38 MW) operating in Yuma, AZ — Arizona Public Service Company

EIAGEMWD

73 MW

Nameplate Capacity

3

Generators

units

Hybrid (2)

Technology

Batteries + Solar Photovoltaic

2013

Operating Since

Location

Coordinates

32.6486, -114.4287

County

Yuma, AZ

Nearby Plants

Yuma Solar + Storage
BESS137 MW · 0.7 km
Arizona Western College PV
Solar4.7 MW · 7.7 km
ORCHARD Solar Generation and BESS
BESS1000 MW · 19.3 km

Ownership & Operator

Field	EIA	GEM	Wikidata
Operator	Arizona Public Service Co	Arizona Public Service	—
Owner(s)	Arizona Public Service Co	Pinnacle West Capital	—
Status	Operating	operating	—

Ownership Chain

About

Foothills Solar Plant Hybrid is a 73 MW solar photovoltaic and battery storage hybrid facility located in Yuma County, Arizona. The plant, which began operating in 2013, is owned by Pinnacle West Capital and operated by Arizona Public Service Co. It interconnects to the Arizona Public Service Company balancing authority within the Western Electricity Coordinating Council (WECC) NERC region. The facility ranks as the 25th largest of 93 solar plants in Arizona, and 989th nationally out of 7108 plants.

The hybrid plant consists of 3 generators utilizing single-axis solar tracking. It is augmented by a 105 MWh lithium-ion battery energy storage system (BESS) providing 3 hours of duration. The plant's latest annual generation was 97,802 MWh, yielding a capacity factor of 15.3%. Financial data indicates an installed cost of $4,094.66 per kW.

Generated from EIA, GEM, and public data sources

EIA Plant Profile Wikidata Global Energy Monitor

Engineering & Generators

Grid Context

NERC Region

WECC

Balancing Authority

Arizona Public Service Company

Grid Voltage

69 kV

Regulatory Status

RE

Entity Type

Investor-Owned Utility

Sector

Electric Utility

Generation

4.8K MWh

Latest Month

97.8K MWh

Annual Generation

15.3%

Capacity Factor

Jan 2022 – Dec 2024

Financial DataBeta

Source: FERC Form 1, LBNL Utility-Scale SolarHIGH

$4,152/kW

Installed Cost

Arizona Public Service Company

Reporting Utility

Cumulative Installed Cost

Per-Unit Cost Trends

Pricing & Market Data

This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.

News & Articles (2)Beta

Regulatory·permitting

APS seeks license extension for Palo Verde Nuclear Plant

Arizona Public Service (APS) plans to renew operating licenses for all three units at Palo Verde Generating Station, extending operations to the mid-2060s, ensuring continued energy supply.

APS (operator)

Power Engineering·1 weeks ago