Cogeneration Services & Small Power Producers
33 tracked issuers filing with the SEC under this industry classification.
Issuers
33
Filings
40
SIC Code
4991
Industry Overview
Cogeneration Services & Small Power Producers
Companies classified under SIC 4991, Cogeneration Services & Small Power Producers, develop and operate facilities that simultaneously generate electricity and useful thermal energy, often from natural gas, biomass, waste heat, or other distributed resources. Their core offerings include power purchase agreements, on-site combined heat and power plants, microgrids, and renewable-independent power projects tailored for industrial manufacturers, hospitals, universities, commercial campuses, and municipal utilities seeking lower energy costs and improved resiliency. Revenue is typically tied to long-term contracts, but operators face exposure to fuel price volatility, counterparty credit risk, interconnection constraints, and evolving federal and state regulations governing wholesale power markets, emissions standards, and incentives such as the Inflation Reduction Act tax credits. Key 2024–2025 trends include growing demand for decarbonization, data center capacity, and grid-edge reliability solutions, plus heightened scrutiny of project financing structures and cyber-physical security. For investors tracking this niche, view live SEC filings and disclosure updates directly on EarningsFeed.
Source: Earnings Feed research · 11/23/2025
Latest Filings
- 8-KAES CORP$AES
AES CORP 8-K
Nov 4, 4:17 PM ET825.9 KB - 10-QAES CORP$AES
AES CORP 10-Q
Nov 4, 4:10 PM ET26.7 MB - 10-QAES CORP$AES
AES CORP 10-Q
Aug 1, 4:16 PM ET26.2 MB - 8-KAES CORP$AES
AES CORP 8-K
Jul 31, 6:12 PM ET823.7 KB - 8-KAES CORP$AES
AES CORP 8-K
Jun 2, 6:05 AM ET231.3 KB - 8-KAES CORP$AES
AES CORP 8-K
May 9, 4:20 PM ET196.7 KB - 8-KAES CORP$AES
AES CORP 8-K
May 1, 5:02 PM ET646.1 KB - 10-QAES CORP$AES
AES CORP 10-Q
May 1, 4:23 PM ET21.0 MB - 10-K/AAES CORP$AES
AES CORP 10-K/A
Apr 11, 4:26 PM ET3.5 MB - 8-KAES CORP$AES
AES CORP 8-K
Mar 20, 4:08 PM ET359.7 KB - 8-KAES CORP$AES
AES CORP 8-K
Mar 14, 4:22 PM ET353.9 KB - 8-KAES CORP$AES
AES CORP 8-K
Mar 12, 9:19 AM ET191.9 KB - 8-KAES CORP$AES
AES CORP 8-K
Mar 10, 9:29 PM ET202.3 KB - 10-KAES CORP$AES
AES CORP 10-K
Mar 10, 7:49 PM ET46.8 MB - 8-KAES CORP$AES
AES CORP 8-K
Feb 28, 6:06 AM ET825.0 KB - S-1/ABarony Power Corp
Barony Power Corp S-1/A
Dec 12, 3:56 PM ET777.2 KB - 8-KAES CORP$AES
AES CORP 8-K
Dec 6, 4:12 PM ET508.0 KB - SC 13G/AAES CORP$AES
AES CORP SC 13G/A
Nov 13, 10:27 AM ET18.3 KB - SC 13G/AAES CORP$AES
AES CORP SC 13G/A
Nov 12, 11:44 AM ET14.2 KB - 8-KAES CORP$AES
AES CORP 8-K
Oct 31, 4:33 PM ET776.8 KB - 10-QAES CORP$AES
AES CORP 10-Q
Oct 31, 4:30 PM ET24.2 MB - SC 13G/AAES CORP$AES
AES CORP SC 13G/A
Oct 22, 6:06 PM ET14.2 KB - 8-K/AAES CORP$AES
AES CORP 8-K/A
Oct 4, 5:51 PM ET418.1 KB - 8-KAES CORP$AES
AES CORP 8-K
Oct 4, 4:13 PM ET416.4 KB - 8-KAES CORP$AES
AES CORP 8-K
Aug 1, 4:36 PM ET786.4 KB - 10-QAES CORP$AES
AES CORP 10-Q
Aug 1, 4:31 PM ET22.8 MB - 8-KMASS MEGAWATTS WIND POWER INC$MMMW
MASS MEGAWATTS WIND POWER INC 8-K
Jul 26, 4:36 PM ET208.7 KB - S-1Barony Power Corp
Barony Power Corp S-1
Jun 7, 4:43 PM ET7.9 MB - 8-KAES CORP$AES
AES CORP 8-K
May 21, 8:48 AM ET1.0 MB - 8-KMASS MEGAWATTS WIND POWER INC$MMMW
MASS MEGAWATTS WIND POWER INC 8-K
May 15, 11:44 AM ET210.6 KB - 8-KMASS MEGAWATTS WIND POWER INC$MMMW
MASS MEGAWATTS WIND POWER INC 8-K
May 8, 8:10 AM ET207.0 KB - 8-KAES CORP$AES
AES CORP 8-K
May 2, 5:19 PM ET655.8 KB - 10-QAES CORP$AES
AES CORP 10-Q
May 2, 5:15 PM ET19.0 MB - 8-KAES CORP$AES
AES CORP 8-K
Apr 26, 4:08 PM ET179.6 KB - SC 13G/AAES CORP$AES
AES CORP SC 13G/A
Apr 10, 12:14 PM ET18.2 KB - 8-KMASS MEGAWATTS WIND POWER INC$MMMW
MASS MEGAWATTS WIND POWER INC 8-K
Mar 27, 1:33 PM ET208.8 KB - 10-QMASS MEGAWATTS WIND POWER INC$MMMW
MASS MEGAWATTS WIND POWER INC 10-Q
Mar 14, 11:17 AM ET2.1 MB - 8-KAES CORP$AES
AES CORP 8-K
Feb 26, 5:27 PM ET841.5 KB - 10-KAES CORP$AES
AES CORP 10-K
Feb 26, 5:24 PM ET42.3 MB - SC 13G/AAES CORP$AES
AES CORP SC 13G/A
Feb 13, 4:55 PM ET13.1 KB
Featured Issuers
12AES CHINA GENERATING CO LTD
CIK 0000916792
- $AES
AES CORP
CIK 0000874761
Barony Power Corp
CIK 0002013121
BESICORP GROUP INC
CIK 0000320443
BESICORP LTD
CIK 0001075627
Blue Earth, Inc.
CIK 0001422109
BONNEVILLE PACIFIC CORP
CIK 0000795182
CALENERGY CO INC
CIK 0000720556
COGENERATION CORP OF AMERICA
CIK 0000795185
COVANTA ENERGY CORP
CIK 0000073902
COVANTA HOLDING CORP
CIK 0000225648
DESTEC ENERGY INC
CIK 0000866282
Classification
- SIC Code
- 4991
- Total Issuers
- 33
- Recent Filings
- 40