South Dakota · Nonprofit
EAST RIVER ELECTRIC POWER COOPERATIVE INC
EAST RIVER ELECTRIC POWER COOPERATIVE INC (South Dakota) receives grants from 1 organization whose IRS filings report $5,780 to it, the largest being EAST TENNESSEE CLEAN FUELS COALITION ($5,780). 0 of them have funded it in more than one year.
- Revenue FY2024
- $371M
- Funders on record
- 1
- Grants received
- $6k
- Net assets
- $301M
What East River Electric Power Cooperative Inc does
Mission
East river electric power cooperative exists to enhance the value of its members.
As stated on its FY2024 Form 990.
Program
East river electric power cooperative is a wholesale electric power supply cooperative serving 24 rural electric cooperatives and one municipally-owned electric system, which in turn serves more than 93,000 homes and businesses and about 250,000 consumers. The cooperative operates and maintains over 3,200 miles of high voltage transmission line and over 260 substations and related facilities to serve an area of 40,000 square miles that covers the rural areas of 41 counties in eastern south dakota and 22 counties in western minnesota. East river is also a transmission owner in the southwest power pool.
The program described on its FY2024 Form 990.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2023 to 2024, from $910M to $1.0B (+12%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 8 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Chief executive
Robert Sahr
CEO/general manager
As listed on its FY2024 Form 990.
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of EAST RIVER ELECTRIC POWER COOPERATIVE INC’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
EAST RIVER ELECTRIC POWER COOPERATIVE INC draws 100% of its grant income from funders outside South Dakota, across 1 state in all.
Funder states come from each funder’s own filing. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Organizations like EAST RIVER ELECTRIC POWER COOPERATIVE INC
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In South Dakota
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Governance
Screen this organization
A dated, signed PDF of the compliance screen for EAST RIVER ELECTRIC POWER COOPERATIVE INC: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds EAST RIVER ELECTRIC POWER COOPERATIVE INC?
- EAST RIVER ELECTRIC POWER COOPERATIVE INC (South Dakota) receives grants from 1 organization whose IRS filings report $5,780 to it, the largest being EAST TENNESSEE CLEAN FUELS COALITION ($5,780). 0 of them have funded it in more than one year.
- How many funders does EAST RIVER ELECTRIC POWER COOPERATIVE INC have?
- IRS filings report 1 organization giving $5,780 in grants to EAST RIVER ELECTRIC POWER COOPERATIVE INC.
- Who is the largest funder of EAST RIVER ELECTRIC POWER COOPERATIVE INC?
- EAST TENNESSEE CLEAN FUELS COALITION is the largest funder on record, with $5,780 in grants. The full list of funders is on this page.
- How can an organization like EAST RIVER ELECTRIC POWER COOPERATIVE INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in South Dakota. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 1 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing