Public Charity

CALIFORNIA INDEPENDENT SYSTEM OPERATOR CORPORATION

CALIFORNIA INDEPENDENT SYSTEM OPERATOR CORPORATION is a nonprofit organization categorized as Public Charity based in FOLSOM, CA. Its most recent IRS filing (2024) reports revenue of $285.9M, expenses of $292.8M, total assets of $1.5B.

EIN: 943274043 FOLSOM, CA Public & Societal Benefit N.E.C. NTEE: W99 Latest filing: 2024
Total Revenue$285.9M
Total Expenses$292.8M
Total Assets$1.5B
Grant Records0
Filing Years2019–2024

Mission

TO ENSURE EFFICIENT USE AND RELIABLE OPERATION OF THE ELECTRIC TRANSMISSION GRID OPERATED BY THE CALIFORNIA ISO, CONSISTENT WITH THE CALIFORNIA PUBLIC UTILITY CODE, CHAPTER 2.3 PART 1, DIVISION 1. (CONTINUED ON SCHEDULE O.)THE ISO DOES NOT OWN TRANSMISSION FACILITIES, BUT IT CONTROLS THE OPERATION OF A NETWORK OF TRANSMISSION FACILITIES LOCATED THROUGHOUT MOST OF CALIFORNIA, AND ALSO CERTAIN TRANSMISSION FACILITIES LOCATED IN NEVADA, THE OWNERS OF WHICH HAVE TRANSFERRED OPERATIONAL CONTROL TO THE CALIFORNIA ISO. FOR THE BENEFIT OF OUR CUSTOMERS, WE:- OPERATE THE GRID RELIABLY AND EFFICIENTLY;- PROVIDE FAIR AND OPEN TRANSMISSION ACCESS;- PROMOTE ENVIRONMENTAL STEWARDSHIP; AND- FACILITATE EFFECTIVE MARKETS AND PROMOTE INFRASTRUCTURE DEVELOPMENT, ALL THROUGH THE PROVISION OF TIMELY AND ACCURATE INFORMATION.

Where $100 goes at California Independent System Operator Corporation

How California Independent System Operator Corporation divides every $100 it spends, from its own Form 990 filings, averaged across 7 years.

$89 Programs the work itself
$11 Management running the organization
$0 Fundraising none reported

No fundraising costs are reported. That often means fundraising runs through a separate affiliated organization that files its own return.

Inside the $89 for programs

$89
The organization serves as the system operator of an integrated statewide electricity transmission grid
All program spending
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Source: Form 990 filings with the IRS, latest fiscal year 2024. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.

Officers & Directors

ASSISTANT GEN. CNSL. - FED REG & MKT Andrew Ulmer
BOARD OF GOVERNORS Angelina Galiteva
VP, MARKET DESIGN & ANALYSIS Anna Mckenna
DEPUTY GEN. CNSL. - LEGAL Burton Gross
VP, SYSTEM OPERATIONS Dede Subakti
PRESIDENT & CEO Elliott Mainzer

Officer compensation and complete director data available with membership.

Financial Trends

Year Revenue Expenses Assets
2024 $285.9M $292.8M $1.5B
2023 $272.5M $277.7M $1.5B
2022 $255.7M $250.9M $1.6B
2020 $249.8M $224.3M $951.6M
2019 $229.2M $213.6M $848.7M

Between 2019 and 2024, reported annual revenue grew from $229.2M to $285.9M (+25%), with total assets most recently reported at $1.5B.

Interactive year-over-year charts and full filing details available with membership.

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