Nonprofit · EIN 47-3849152
HOTROCK ENERGY RESEARCH ORGANIZATION
Tax-exempt · SEATTLE, WA 98105
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $712,089 | $694,660 | $17,429 | $42,711 | $1,645 | $41,066 |
| December 31, 2024 | 990 | $305,621 | $325,755 | -$20,134 | $25,282 | $1,645 | $23,637 |
| December 31, 2023 | 990 | $114,686 | $83,696 | $30,990 | $45,416 | $1,645 | $43,771 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $125,302
- Program service revenue
- $586,623
- Investment income
- $164
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $169,180
- Salaries, compensation and benefits (total)
- $182,648
- Professional fundraising fees
- $0
- Accounting fees
- $6,498
- Occupancy
- $192
- Travel
- $8,011
- Program services (functional)
- $651,018
- Management and general (functional)
- $43,642
Balance sheet and other
- Total assets, start of year
- $25,282
- Total assets, end of year
- $42,711
- Total liabilities, end of year
- $1,645
- Net assets, end of year
- $41,066
- Net assets without donor restrictions
- $41,066
- Gross receipts
- $712,089
- Employees
- 1
- Volunteers
- 2
- Year formed
- 2015
- State of legal domicile
- WA
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Susan Petty | President, Treasurer Trustee or director | 20 | $169,180 |
| Jill Watz | Director, Secretary Trustee or director | 10 | $46,316 |
| Britt Ide | Director Trustee or director | 5 | $0 |
| Steven Klein | Director Trustee or director | 5 | $0 |
| Tim McDonald | Director Trustee or director | 5 | $0 |
990 for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Susan Petty | President, Treasurer Trustee or director | 20 | $0 |
| Jill Watz | Director, Secretary Trustee or director | 10 | $0 |
| Britt Ide | Director Trustee or director | 5 | $0 |
| Steven Klein | Director Trustee or director | 5 | $0 |
| Tim McDonald | Director Trustee or director | 5 | $0 |
990 for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Susan Petty | President, Treasurer Trustee or director | 20 | $0 |
| Jill Watz | Director, Secretary Trustee or director | 10 | $0 |
| Britt Ide | Director Trustee or director | 5 | $0 |
| Steven Klein | Director Trustee or director | 5 | $0 |
| Tim McDonald | Director Trustee or director | 5 | $0 |
Address and contacts
- Address (IRS master file)
- 215 NE 40TH ST STE C2, SEATTLE, WA 98105-6567
- In care of
- % SUSAN PETTY
- Principal officer (990 for 2025)
- Susan Petty, PO Box 31079, Seattle, WA 98103
- Signed the 990
- Susan Petty, President
- Phone
- (206) 217-5960
- Return prepared by
- Accman Inc
Mission
Research and development of geothermal systems
Program accomplishments
- Provide education and outreach, perform research and testing, and provide feasibility studies and pilot projects to move geothermal technology forward.Expenses $651,018 · revenue $712,089
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 47-3849152
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2015
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U40)
- Assets (IRS master file)
- $42,711
- Income (IRS master file)
- $712,089
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $712,089 | $694,660 | $42,711 | IRS |
| 990 | December 2024 | $305,621 | $325,755 | $25,282 | XML |
| 990 | December 2023 | $114,686 | $83,696 | $45,416 | XML |
| 990 | December 2022 | $174,286 | $170,287 | $15,740 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | IRS |
| 990-EZ | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 47-3849152).
Questions about HOTROCK ENERGY RESEARCH ORGANIZATION
- What is the EIN of HOTROCK ENERGY RESEARCH ORGANIZATION?
- The employer identification number (EIN) of HOTROCK ENERGY RESEARCH ORGANIZATION is 47-3849152.
- Is HOTROCK ENERGY RESEARCH ORGANIZATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2015.
- Are donations to HOTROCK ENERGY RESEARCH ORGANIZATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does HOTROCK ENERGY RESEARCH ORGANIZATION file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of HOTROCK ENERGY RESEARCH ORGANIZATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did HOTROCK ENERGY RESEARCH ORGANIZATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of HOTROCK ENERGY RESEARCH ORGANIZATION?
- The 990 for the year ended December 31, 2025 names Susan Petty.
- Who are the officers and directors of HOTROCK ENERGY RESEARCH ORGANIZATION?
- The 990 for the year ended December 31, 2025 lists 5 people; 2 received compensation from the organization, the highest $169,180 (Susan Petty, President, Treasurer).
- How much revenue does HOTROCK ENERGY RESEARCH ORGANIZATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $712,089, expenses of $694,660 and total assets of $42,711 at year end.
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