Clean energy research and advocacy. Clean Energy Group promotes effective clean energy policies, develops low carbon technology innovation strategies and promotes new financial tools to strengthen the economy and stabilize climate change.

501(c)(3) charity; gifts are tax-deductible.
80¢ of each $1 spent went to programs.
$937K paid to officers and key staff.
Mission: Form 990 Part I, line 1 · Status: IRS Pub. 78 · Programs: Part IX · Pay: Part VII

Before you give

FY2021 · Form 990Independent: from IRS data, not the org
Download 990
IRS status
501(c)(3)
not on the IRS revocation list
Looks good: listed by the IRS and not on the revocation list.
IRS BMF · Auto-Revocation List
Tax-deductible gifts
Yes
Donations are tax-deductible
Looks good: the IRS lists gifts to it as deductible.
IRS Pub. 78 · IRS BMF
Latest return
FY2025
latest Form 990
Looks good: the latest return is for FY2025, 1 tax year back; within 2 tax years.
IRS e-file · Filing history
Surplus or deficit
2 of 5
filings with a surplus
Average deficit $18K a year · 1% of revenue · last 5 filings
Concern: a surplus in 2 of the last 5 filings.
Pt I · Ln 19 · 5 filings
Spent on programs
80%
of spending
Looks good: 80% of spending went to programs; 75% or more.
Pt IX · Ln 25 · col B
Pay to officers and key staff
$937K
to officers and key staff · 55% of spending
Concern: pay to officers and key staff is 55% of spending; over 30%.
Pt VII · Sec A
14 mo
of spending, in cash
Looks good: 14.1 months of spending in cash; 3 or more.
Pt X · Ln 1–2 · Pt I · Ln 18
Named funders
3
named funders · $492K
Looks good: 3 funders name it on their filings; 3 or more.
Funders’ Sch. I, 990-PF
Liabilities
$467K
21% of total assets
Looks good: liabilities are 21% of assets; 50% or less.
Pt X · Ln 26
Independent board members
6
of 7 voting members
Looks good: 6 of 7 voting members are independent, a majority.
Pt VI · Ln 1a–1b
Looks goodFineWorth a lookConcernNo data yetTap a box for the reason.
Revenue
$1.4M
Spent
$1.7M
To programs
80%
Net assets
$1.8M
By yearFY2021–FY2025
Revenue
$1.4M
FY2021
Tap a bar for its year
Revenue by fiscal year
FY2021$1.4M
FY2022$1.3M
FY2023$1.9M
FY2024$1.8M
FY2025$2.2M
Expenses
$1.7M
FY2021
Tap a bar for its year
Expenses by fiscal year
FY2021$1.7M
FY2022$1.4M
FY2023$1.5M
FY2024$1.8M
FY2025$2.2M
Net assets
$1.8M
FY2021
Tap a bar for its year
Net assets by fiscal year
FY2021$1.8M
FY2022$1.7M
FY2023$2.0M
FY2024$2.0M
FY2025$2.0M

From the FY2021 Form 990 (year ending June 2021) · figures checked against the IRS filing · see the original

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You’re viewing the FY2021 filing — not the latest on file. See the latest (FY2025) →

Is it real?

Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Feb 1999.

IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File

Where the money goes

80 cents of each dollar spent went to programs.

Program services 80% · $1.4M Management & general 19% · $317K Fundraising 1% · $21K

Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.

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Who runs it and what they're paid

12 people listed on the 990; $937K paid to officers and key staff.

Part VII, Section A · reportable compensation · most recent filed roster (FY2020); the FY2021 filing did not itemize Part VII
President & CEO
$230,575Pt VII · Sec A
Cesa Executive Director
$185,183Pt VII · Sec A
Treasurer & CFO
$158,005Pt VII · Sec A
Senior Finance Director
$148,031Pt VII · Sec A
Senior Project Director
$107,718Pt VII · Sec A
Vice President
$107,491Pt VII · Sec A
$0Pt VII · Sec A
Director
$0Pt VII · Sec A

Warren Leon’s $192K as Cesa Executive Director is at the 82nd percentile of top reported officer pay among 1851 $1–10M environment nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.

Compensation history total reportable pay by year · 8 named individuals · Part VII

NameFY2025FY2024FY2023FY2022FY2021
Lewis Milford Left During Fy22———$247,154—
Lewis Milford————$230,575
Warren Leon$192,285$193,721$194,623$190,036$185,183
Anthony Vargo$184,579$177,233$169,230$162,708$158,005
Seth Mullendore$181,252$176,783$164,423$109,433$107,491
Robert Sanders————$148,031
Todd Olinsky-Paul$125,458$118,028$112,879$106,863$107,718
Maria Blais Costello$105,599$98,711$99,119$99,237—

Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.

See Clean Energy Group INC executive salaries →

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Questions the 990 asks

The form asks each of these directly. These are the filed answers.

  • Family or business ties among officersPt VI · Ln 2No
  • Top official's pay set by an independent reviewPt VI · Ln 15aYes

Programs and updates

Promotes clean energy policies, develops low-carbon technology, and creates financial tools for economic and climate stability.

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3 programs · $1.4M · in their own filed words · FY2020
01

Policy

This program includes projects to educate the public and policy experts to move beyond pricing measures such as cap and trade to develop long-term, complementary climate stabilization policies that encourage massive technology innovation and deployment to drive the development of new clean energy technologies and markets.

$594Kprogram expense
02

Finance

This program includes projects that identify new sources of capital, align the interests of the private and public sectors, and develop government and private sector interventions to overcome existing financing gaps to get zero-carbon technology investment to scale.

$519Kprogram expense
03

Technology

This program includes projects to achieve climate stabilization by exploring how to incorporate technology innovation into new strategies, whose aim is to advance clean energy technologies and to stabilize greenhouse emissions.

$250Kprogram expense

Funders

Who pays for it.

From grant filings on record. Receipts are incomplete: individual donors are never listed.

Grants

Schedule I · received and paid
Grants received · FY2024
Total grants receivedfrom 3 funders$492K
See all 3 funders →
Grants paid · 23 grants · $547K · 2020–2024
Sust Aina Ble MolokaiHI · FY2024$20,000
Green Building UnitedPA · FY2024$20,000
Clean Energy ActionCO · FY2024$20,000
Krewe of Red BeansLA · FY2024$10,000
United Puerto Rican OrganizationNY · FY2023$20,000
The Power CDCNY · FY2023$20,000
Uprose INCNY · FY2021$30,000
See all 23 grants →

By the numbers

The FY2021 990, line by line.

1The main four
Money inPt VIII
$1.4M
Ln 12
Gifts and grantsLn 1h$868K
Fees for servicesLn 2g$519K
Investment incomeLn 3$5K
Money outPt IX
$1.7M
Ln 25
Programscol B$1.4M
Managementcol C$317K
Fundraisingcol D$21K
Owns and owesPt X
$1.8M
net assets · Ln 32
Cash and savingsLn 1–2$2.0M
Total assetsLn 16$2.2M
LiabilitiesLn 26$467K
PeoplePt VI, VII
12
listed · VII A
PaidVII A6
Voting boardVI 1a7
IndependentVI 1b6
2In more detail
Revenue in detailPt VIII
Gifts and grantsLn 1h$868K
Government grantsLn 1e$0
Noncash giftsLn 1g$0
Fundraising eventsLn 1c$0
Fees for servicesLn 2g$519K
Investment incomeLn 3$5K
Total revenueLn 12$1.4M
Assets in detailPt X, end of year
CashLn 1$43K
SavingsLn 2$1.9M
Cash and savings togetherLn 1–2$2.0M
Land, buildings, equipmentLn 10c$11K
Other assetsLn 15$0
Total assetsLn 16$2.2M
LiabilitiesLn 26$467K
Net assetsLn 32$1.8M
OperationsPt I, VI
EmployeesI 516
VolunteersI 66
Fiscal year endsHeaderJune
Conflict-of-interest policyVI 12aYes
Whistleblower policyVI 13Yes
Records policyVI 14Yes
3Year over year
Balance sheet, start vs end of yearPt X · col A, B
LineStart FY21End FY21
Cash and savingsLn 1–2$2.0M$2.0M
Land, buildings, equipmentLn 10c$11K$11K
Total assetsLn 16$2.5M$2.2M
LiabilitiesLn 26$390K$467K
Net assetsLn 32$2.1M$1.8M
4Every line
Statement of functional expensesPt IX · every line
LineTotalProgramsManagementFundraising
Grants to domestic organizationsLn 1$80K$80K
Grants to domestic individualsLn 2$0$0
Grants and assistance to foreign recipientsLn 3$0$0
Benefits paid to or for membersLn 4$0$0
Pay of current officers, directors and key staffLn 5$536K$408K$128K$315
Pay of disqualified personsLn 6$0$0$0$0
Other salaries and wagesLn 7$336K$236K$87K$13K
Pension plan contributionsLn 8$44K$32K$11K$2K
Other employee benefitsLn 9$92K$65K$24K$2K
Payroll taxesLn 10$48K$36K$11K$855
Management feesLn 11a$0$0$0$0
Legal feesLn 11b$2K$1K$457$0
Accounting feesLn 11c$8K$0$8K$0
Lobbying feesLn 11d$0$0$0$0
Professional fundraising feesLn 11e$0$0
Investment management feesLn 11f$0$0$0$0
Other fees for servicesLn 11g$449K$434K$15K$309
Advertising and promotionLn 12$0$0$0$0
Office expensesLn 13$39K$31K$8K$229
Information technologyLn 14$0$0$0$0
RoyaltiesLn 15$0$0$0$0
OccupancyLn 16$33K$24K$8K$433
TravelLn 17$3K$2K$1K$18
Travel and entertainment for public officialsLn 18$0$0$0$0
Conferences, conventions and meetingsLn 19$0$0$0$0
InterestLn 20$0$0$0$0
Payments to affiliatesLn 21$8K$8K$0$0
Depreciation, depletion and amortizationLn 22$3K$1K$2K$38
InsuranceLn 23$9K$2K$7K$130
Other expenses (24a–d)Ln 24$13K$3K$8K$1K
Total functional expensesLn 25$1.7M$1.4M$317K$21K

Filing history

YearMoney inMoney outIn minus outNet assetsDownload
FY2025 Latest $2.2M$2.2M$7K$2.0M 990 PDF
FY2024 $1.8M$1.8M−$60K$2.0M 990 PDF
FY2023 $1.9M$1.5M$327K$2.0M 990 PDF
FY2022 $1.3M$1.4M−$55K$1.7M 990 PDF
FY2021 Viewing $1.4M$1.7M−$310K$1.8M 990 PDF

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Schedules filed Part IV

III · Programs R · Related orgs G · Fundraising L · Interested persons I · Grants A · Public support J · Pay O · Explanations
See the full FY2021 990 (6 parts)
Part I · Summary $1,391,524 revenue, 12 lines filed
I-8 Contributions and grantsPrior year $790,345$867,594
I-9 Program service revenuePrior year $738,734$518,568
I-10 Investment incomePrior year $15,743$5,362
I-11 Other revenue$0
I-12 Total revenuePrior year $1,544,822$1,391,524
I-13 Grants and similar amounts paidPrior year $0$80,000
I-14 Benefits paid to membersPrior year $0$0
I-15 Salaries and benefitsPrior year $1,101,847$1,055,814
I-16a Professional fundraising feesPrior year $0$0
I-17 Other expensesPrior year $651,057$565,510
I-18 Total expensesPrior year $1,752,904$1,701,324
I-19 Revenue less expensesPrior year −$208,082−$309,800
Part VI · Governance 6 of 7 board members independent, no flags
VI-1a Voting members of the governing body7
VI-1b Independent voting members6
VI-2 Family or business relationship among officers or directorsNo
VI-12a Written conflict of interest policyYes
VI-13 Written whistleblower policyYes
VI-14 Document retention and destruction policyYes
VI-15a Process for setting top official's payYes
Part VIII · Statement of revenue $1,391,524 across 11 lines filed
VIII-1a Federated campaigns$0
VIII-1b Membership dues$0
VIII-1c Fundraising events$0
VIII-1d Related organizations$0
VIII-1e Government grants$0
VIII-1f All other contributions, gifts and grants$867,594
VIII-1g Noncash contributions (included above)$0
VIII-1h Total contributions, gifts and grants$867,594
VIII-2a-f Program service revenue, itemized rows (sum of 2a–2f as filed)Unrelated business $0 · Excluded from tax $0$518,568
VIII-3 Investment incomeUnrelated business $0 · Excluded from tax $5,362$5,362
VIII-12 Total revenueRelated to mission $518,568 · Unrelated business $0 · Excluded from tax $5,362$1,391,524
Part IX · Statement of functional expenses $1,701,324 across 30 lines filed
IX-1 Grants to domestic organizationsPrograms $80,000$80,000
IX-2 Grants to domestic individualsPrograms $0$0
IX-3 Grants and assistance to foreign recipientsPrograms $0$0
IX-4 Benefits paid to or for membersPrograms $0$0
IX-5 Pay of current officers, directors and key staffPrograms $407,638 · Management $128,058 · Fundraising $315$536,011
IX-6 Pay of disqualified personsPrograms $0 · Management $0 · Fundraising $0$0
IX-7 Other salaries and wagesPrograms $235,892 · Management $86,557 · Fundraising $13,223$335,672
IX-8 Pension plan contributionsPrograms $31,909 · Management $10,629 · Fundraising $1,555$44,093
IX-9 Other employee benefitsPrograms $65,352 · Management $24,110 · Fundraising $2,307$91,769
IX-10 Payroll taxesPrograms $36,073 · Management $11,341 · Fundraising $855$48,269
IX-11a Management feesPrograms $0 · Management $0 · Fundraising $0$0
IX-11b Legal feesPrograms $1,318 · Management $457 · Fundraising $0$1,775
IX-11c Accounting feesPrograms $0 · Management $7,750 · Fundraising $0$7,750
IX-11d Lobbying feesPrograms $0 · Management $0 · Fundraising $0$0
IX-11e Professional fundraising feesFundraising $0$0
IX-11f Investment management feesPrograms $0 · Management $0 · Fundraising $0$0
IX-11g Other fees for servicesPrograms $433,836 · Management $14,663 · Fundraising $309$448,808
IX-12 Advertising and promotionPrograms $0 · Management $0 · Fundraising $0$0
IX-13 Office expensesPrograms $30,889 · Management $7,568 · Fundraising $229$38,686
IX-14 Information technologyPrograms $0 · Management $0 · Fundraising $0$0
IX-15 RoyaltiesPrograms $0 · Management $0 · Fundraising $0$0
IX-16 OccupancyPrograms $24,455 · Management $7,643 · Fundraising $433$32,531
IX-17 TravelPrograms $1,558 · Management $1,375 · Fundraising $18$2,951
IX-18 Travel and entertainment for public officialsPrograms $0 · Management $0 · Fundraising $0$0
IX-19 Conferences, conventions and meetingsPrograms $0 · Management $0 · Fundraising $0$0
IX-20 InterestPrograms $0 · Management $0 · Fundraising $0$0
IX-21 Payments to affiliatesPrograms $8,179 · Management $0 · Fundraising $0$8,179
IX-22 Depreciation, depletion and amortizationPrograms $1,341 · Management $1,509 · Fundraising $38$2,888
IX-23 InsurancePrograms $1,516 · Management $7,323 · Fundraising $130$8,969
IX-24 Other expenses (24a–d)Programs $3,203 · Management $8,447 · Fundraising $1,323$12,973
IX-25 Total functional expensesPrograms $1,363,159 · Management $317,430 · Fundraising $20,735$1,701,324
Part X · Balance sheet $2,221,398 assets, 16 lines filed
X-1 Cash, non-interest-bearingStart of year $34,067$43,331
X-2 Savings and temporary cash investmentsStart of year $1,947,643$1,949,007
X-3 Pledges and grants receivableStart of year $356,000$168,000
X-4 Accounts receivableStart of year $666$1,885
X-9 Prepaid expenses and deferred chargesStart of year $41,646$48,333
X-10c Land, buildings and equipment, netStart of year $11,000$10,842
X-15 Other assetsStart of year $62,809$0
X-16 Total assetsStart of year $2,453,831$2,221,398
X-17 Accounts payable and accrued expensesStart of year $233,246$254,374
X-19 Deferred revenueStart of year $156,523$199,931
X-25 Other liabilitiesStart of year $0$12,831
X-26 Total liabilitiesStart of year $389,769$467,136
X-27 Net assets without donor restrictionsStart of year $1,010,085$1,125,335
X-28 Net assets with donor restrictionsStart of year $1,053,977$628,927
X-32 Total net assets or fund balancesStart of year $2,064,062$1,754,262
X-33 Total liabilities and net assetsStart of year $2,453,831$2,221,398
Part XI · Reconciliation of net assets $1,754,262 net assets at year end
XI-1 Total revenue$1,391,524
XI-2 Total expenses$1,701,324
XI-3 Revenue less expenses−$309,800
XI-4 Net assets at start of year$2,064,062
XI-10 Net assets at end of year$1,754,262

Form 990 e-file (XML) FY2021 from the IRS · Classification, formation year and address from the IRS Business Master File

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