FlexGen Power Systems Acquires Clean Energy Services (CES) to Expand Battery Storage Commissioning and Lifecycle Services

US Clean Energy Acquires Eneon ES

April 6, 2023

Renewable Energy

US Clean Energy (USCE), a clean energy platform and holding company, has acquired Eneon ES, a North American battery energy storage system (BESS) solutions provider. The deal brings Eneon's engineering, power conversion and control system expertise into the USCE platform to expand capabilities, market reach and access to capital for accelerated growth in the BESS market.

CES Power Acquires Global Power Systems

January 3, 2023

Industrial Services

CES Power, a portfolio company backed by Allied Industrial Partners, acquired Global Power Systems, a provider of mobile power generation and temperature control services operating in Louisiana, Georgia and North Carolina. The add-on expands CES Power's presence in the Southeast and strengthens its position in the studio power and HVAC space for the film and television industry.

PowerGEM Acquires Cambridge Energy Solutions

November 7, 2024

Energy

PowerGEM, a PE-backed provider of power grid and energy market simulation software, has merged with Cambridge Energy Solutions (CES) to combine complementary energy market modeling and pricing simulation products. The deal expands PowerGEM's software portfolio and capabilities for short- and long-term electricity market simulation to better serve traders, financial firms, utilities and other power market participants.

Fidelity Building Services Group Acquires Compressor Energy Services

May 14, 2024

Industrial Services

Fidelity Building Services Group (Fidelity BSG) has acquired Compressor Energy Services (CES), a New England–based firm specializing in compressed air energy-efficiency consulting and project implementation. CES will join Fidelity's Energy & Sustainability Group to expand turnkey energy offerings for industrial, manufacturing and R&D clients across Fidelity's national footprint.

PosiGen Acquires New England Conservation Services (NECS)

October 12, 2022

Energy

PosiGen, a residential solar and energy-efficiency provider, has acquired New England Conservation Services (NECS), Connecticut's longest-running residential energy-efficiency provider. The acquisition brings NECS's 18-member team and program qualifications in-house, enabling PosiGen to deliver faster energy-efficiency upgrades across Connecticut and expand its combined solar-plus-efficiency offering for low-to-moderate income households.

GenServe Acquires Power and Energy Services, Inc. (PES)

November 20, 2025

Industrial Services

GenServe, a PE-backed provider of backup power solutions, has acquired Power and Energy Services, Inc. (PES), an Austell, Georgia-based generator maintenance, repair, rental and equipment solutions provider. The acquisition expands GenServe's presence in the Southeastern United States, strengthens technical capabilities, and establishes a regional operations hub to support future growth.