Cogeneration Services & Small Power Producers
25 tracked issuers filing with the SEC under this industry classification.
Issuers
25
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
- 4COVANTA HOLDING CORP
COVANTA HOLDING CORP 4
Oct 30, 6:21 PM ET16.6 KB - 8-KMIDWEST GENERATION LLC
MIDWEST GENERATION LLC 8-K
Dec 15, 5:03 PM ET25.3 KB - 8-KMASS MEGAWATTS WIND POWER INC$MMMW
MASS MEGAWATTS WIND POWER INC 8-K
Dec 15, 11:11 AM ET10.1 KB - 8-KCOVANTA HOLDING CORP
COVANTA HOLDING CORP 8-K
Oct 17, 6:06 AM ET1.8 MB - 8-KAES CORP$AES
AES CORP 8-K
Oct 4, 3:04 PM ET184.7 KB - 4AES CORP$AES
AES CORP 4
Oct 4, 2:19 PM ET8.3 KB - 8-KENVIRONMENTAL POWER CORP
ENVIRONMENTAL POWER CORP 8-K
Aug 17, 4:42 PM ET113.3 KB - 8-KDANIELSON HOLDING CORP
DANIELSON HOLDING CORP 8-K
Aug 8, 5:14 PM ET11.3 KB - 8-KMASS MEGAWATTS WIND POWER INC$MMMW
MASS MEGAWATTS WIND POWER INC 8-K
Aug 5, 11:28 AM ET7.3 KB - 8-KAES CORP$AES
AES CORP 8-K
Jul 27, 5:00 PM ET45.4 KB - 6-KDYNAMOTIVE ENERGY SYSTEMS CORP
DYNAMOTIVE ENERGY SYSTEMS CORP 6-K
Jul 13, 1:23 PM ET11.2 KB - 8-KDANIELSON HOLDING CORP
DANIELSON HOLDING CORP 8-K
Jun 30, 4:48 PM ET2.3 MB - 8-KENVIRONMENTAL POWER CORP
ENVIRONMENTAL POWER CORP 8-K
Jun 30, 1:23 PM ET34.9 KB - 6-KDYNAMOTIVE ENERGY SYSTEMS CORP
DYNAMOTIVE ENERGY SYSTEMS CORP 6-K
Jun 24, 12:39 PM ET12.2 KB - 8-KDANIELSON HOLDING CORP
DANIELSON HOLDING CORP 8-K
Jun 23, 5:12 PM ET21.1 KB - 8-KAES CORP$AES
AES CORP 8-K
Jun 23, 5:04 PM ET34.0 KB - 8-KENVIRONMENTAL POWER CORP
ENVIRONMENTAL POWER CORP 8-K
Jun 23, 4:07 PM ET31.3 KB - 6-KDYNAMOTIVE ENERGY SYSTEMS CORP
DYNAMOTIVE ENERGY SYSTEMS CORP 6-K
Jun 23, 1:31 PM ET12.0 KB - 4DANIELSON HOLDING CORP
DANIELSON HOLDING CORP 4
Jun 21, 12:34 PM ET12.3 KB - 4DANIELSON HOLDING CORP
DANIELSON HOLDING CORP 4
Jun 20, 1:30 PM ET7.5 KB - 4DANIELSON HOLDING CORP
DANIELSON HOLDING CORP 4
Jun 6, 12:04 PM ET25.6 KB - 4AES CORP$AES
AES CORP 4
May 2, 7:27 PM ET9.0 KB - 4AES CORP$AES
AES CORP 4
May 2, 6:57 PM ET6.8 KB - 4AES CORP$AES
AES CORP 4
May 2, 6:45 PM ET10.4 KB - 4AES CORP$AES
AES CORP 4
May 2, 6:38 PM ET9.0 KB - 4AES CORP$AES
AES CORP 4
May 2, 5:26 PM ET6.7 KB - 4AES CORP$AES
AES CORP 4
May 2, 5:12 PM ET6.9 KB - 4AES CORP$AES
AES CORP 4
May 2, 5:01 PM ET6.6 KB - 4AES CORP$AES
AES CORP 4
May 2, 4:49 PM ET12.4 KB - 4AES CORP$AES
AES CORP 4
May 2, 2:58 PM ET13.4 KB - 8-KMIDWEST GENERATION LLC
MIDWEST GENERATION LLC 8-K
Apr 19, 8:06 PM ET23.2 KB - 8-KDANIELSON HOLDING CORP
DANIELSON HOLDING CORP 8-K
Apr 7, 3:03 PM ET991.2 KB - SC 13D/ADANIELSON HOLDING CORP
DANIELSON HOLDING CORP SC 13D/A
Feb 7, 11:58 AM ET69.6 KB - 5MASS MEGAWATTS WIND POWER INC$MMMW
MASS MEGAWATTS WIND POWER INC 5
Jan 26, 9:40 AM ET4.3 KB - 4DANIELSON HOLDING CORP
DANIELSON HOLDING CORP 4
Jan 25, 9:34 AM ET6.4 KB - SC 13D/ADANIELSON HOLDING CORP
DANIELSON HOLDING CORP SC 13D/A
Jan 25, 9:30 AM ET37.4 KB - 8-KSELKIRK COGEN FUNDING CORP
SELKIRK COGEN FUNDING CORP 8-K
Dec 30, 12:02 PM ET1.4 MB - 6-KDYNAMOTIVE ENERGY SYSTEMS CORP
DYNAMOTIVE ENERGY SYSTEMS CORP 6-K
Dec 7, 1:03 PM ET11.5 KB - 10-Q/AENVIRONMENTAL POWER CORP
ENVIRONMENTAL POWER CORP 10-Q/A
Dec 3, 3:18 PM ET40.9 KB - 10-Q/AENVIRONMENTAL POWER CORP
ENVIRONMENTAL POWER CORP 10-Q/A
Dec 3, 3:02 PM ET41.5 KB
Featured Issuers
12AES CHINA GENERATING CO LTD
CIK 0000916792
- $AES
AES CORP
CIK 0000874761
BESICORP GROUP INC
CIK 0000320443
BESICORP LTD
CIK 0001075627
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
DYNAMOTIVE ENERGY SYSTEMS CORP
CIK 0000941625
EDISON MISSION HOLDINGS CO
CIK 0001099532
Classification
- SIC Code
- 4991
- Total Issuers
- 25
- Recent Filings
- 40