Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 26-3963904

SUSTAINABLE ENERGY UTILITY INC

Tax-exempt · DOVER, DE 19904

Financials

$45M$35.2M2023$48.7M$35.3M2024
Revenue Expenses · by fiscal year end
Financials of SUSTAINABLE ENERGY UTILITY INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$48,748,802$35,292,334$13,456,468$162,588,182$54,489,278$108,098,904
June 30, 2024990$44,956,278$35,165,402$9,790,876$153,963,213$59,322,482$94,640,731
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$39,712,351
of which government grants
$39,712,351
Program service revenue
$5,734,353
Investment income
$3,296,664
Other revenue
$5,434

Expenses

Grants and similar amounts paid
$5,680,894
Other salaries and wages
$628,167
Salaries, compensation and benefits (total)
$771,506
Professional fundraising fees
$0
Legal fees
$178,212
Accounting fees
$88,415
Occupancy
$73,056
Travel
$6,760
Depreciation
$26,220
Program services (functional)
$33,574,483
Management and general (functional)
$1,717,851

Balance sheet and other

Total assets, start of year
$153,963,213
Total assets, end of year
$162,588,182
Total liabilities, end of year
$54,489,278
Net assets, end of year
$108,098,904
Land, buildings and equipment
$72,067
Net assets without donor restrictions
$107,985,504
Net assets with donor restrictions
$113,400
Gross receipts
$48,748,802
Employees
8
Volunteers
10
Year formed
2008
State of legal domicile
DE

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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
DREW SLATEREXECUTIVE DI
Highest-paid employee
40$135,000
SUZANNE SEBASTIANEMPLOYEE
Highest-paid employee
40$110,711
SENATOR HARRIS B MCDOWELL IIICO-FOUNDER/M
Trustee or director
–$0
KRISTOPHER E KNIGHTTREASURER/SE
Trustee or director, Officer
–$0
MICHAEL J CHAJES PHDBOARD MEMBER
Trustee or director
–$0
W CHARLES PARADEE IIIBOARD MEMBER
Trustee or director
–$0
SEAN FINNIGANCHAIRMAN
Trustee or director, Officer
–$0
STEPHANIE L HANSENBOARD MEMBER
Trustee or director
–$0
RICHARD I G JONES JRBOARD MEMBER
Trustee or director
–$0
RIC MOOREBOARD MEMBER
Trustee or director
–$0
JAMESON TWEEDIEBOARD MEMBER
Trustee or director
–$0
GREG PATTERSONBOARD MEMBER
Trustee or director
–$0
990 for the year ended June 30, 2024: 10 people
NameTitleHours / weekCompensation
SENATOR HARRIS B MCDOWELL IIICO-FOUNDER/C
Trustee or director, Officer
0$0
KRISTOPHER E KNIGHTTREASURER/SE
Trustee or director, Officer
0$0
MICHAEL J CHAJES PHDBOARD MEMBER
Trustee or director
0$0
W CHARLES PARADEE IIIBOARD MEMBER
Trustee or director
0$0
SEAN FINNIGANBOARD MEMBER
Trustee or director
0$0
SHAWN M GARVINBOARD MEMBER
Trustee or director
0$0
STEPHANIE L HANSENBOARD MEMBER
Trustee or director
0$0
RICHARD I G JONES JRVICE CHAIR
Trustee or director, Officer
0$0
RIC MOOREBOARD MEMBER
Trustee or director
0$0
RUTH PRICEBOARD MEMBER
Trustee or director
0$0

Address and contacts

Address (IRS master file)
500 W LOOCKERMAN ST STE 400, DOVER, DE 19904-3276
In care of
% TONY DEPRIMA
Principal officer (990 for 2024)
DREW SLATER
Signed the 990
DREW SLATER, EXECUTIVE DIRECTOR
Phone
(302) 883-3038
Return prepared by
FAW CASSON & CO LLP

Mission

TO SERVE THE SUSTAINABLE ENERGY NEEDS OF ALL DELAWARE ENERGY CONSUMERS USING ALL FUELS.

990 for the year ended June 30, 2025

Program accomplishments

  • TO OFFER RENEWABLE AND ENERGY-EFFICIENT PROGRAMS THAT HELP DELAWAREANS REDUCE THEIR CARBON FOOTPRINT.
    Expenses $33,574,483 · grants $5,680,894 · revenue $5,734,353
  • TO SERVE THE SUSTAINABLE ENERGY NEEDS OF ALL DELAWARE ENERGY CONSUMERS

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
26-3963904
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Supporting organization (509(a)(3))
Donations deductible (Pub 78)
Supporting organization of unknown type
Exempt since
2009
Accounting year ends
June
Files
Form 990 or 990-EZ
Category (NTEE)
Environment (C35)
Assets (IRS master file)
$162,588,182
Income (IRS master file)
$48,748,802

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$48,748,802$35,292,334$162,588,182XML
990June 2024$44,956,278$35,165,402$153,963,213XML
990June 2023$35,802,665$33,792,966$148,322,996IRS
990June 2022–––IRS
990June 2021–––IRS
990June 2020–––IRS
990June 2019–––IRS
990June 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 26-3963904).

Questions about SUSTAINABLE ENERGY UTILITY INC

What is the EIN of SUSTAINABLE ENERGY UTILITY INC?
The employer identification number (EIN) of SUSTAINABLE ENERGY UTILITY INC is 26-3963904.
Is SUSTAINABLE ENERGY UTILITY INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2009.
Are donations to SUSTAINABLE ENERGY UTILITY INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
Which annual return does SUSTAINABLE ENERGY UTILITY INC 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 SUSTAINABLE ENERGY UTILITY INC due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did SUSTAINABLE ENERGY UTILITY INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of SUSTAINABLE ENERGY UTILITY INC?
The 990 for the year ended June 30, 2025 names DREW SLATER.
Who are the officers and directors of SUSTAINABLE ENERGY UTILITY INC?
The 990 for the year ended June 30, 2025 lists 12 people; 2 received compensation from the organization, the highest $135,000 (DREW SLATER, EXECUTIVE DI).
How much revenue does SUSTAINABLE ENERGY UTILITY INC have?
On its 990 for the year ended June 30, 2025 it reported revenue of $48,748,802, expenses of $35,292,334 and total assets of $162,588,182 at year end.

Other nonprofits in DOVER

All nonprofits in DOVER · Delaware · Environment