Yanmar CHP Archives | Controlled Air, Inc.

Microgrid, Middletown CT | Middletown Recreation Center

Controlled Air Inc. — Fri, 08 Aug 2025 14:52:17 +0000

Middletown Recreation Center Embraces a Resilient and Sustainable Future with a New Microgrid

In a significant step towards energy independence and sustainability, the Middletown Recreation Center has completed the installation of a new microgrid system. This project is a cornerstone of the city’s broader efforts to modernize its infrastructure and ensure the community’s safety and comfort, particularly during extreme weather events.

The new recreation center, built on the former site of the Woodrow Wilson Middle School, is not only a hub for community activities with renovated gyms and pools but also serves a vital role as a designated heating and cooling center during power outages. The microgrid is the key to this resilience, allowing the facility to operate independently of the main power grid.

The system is a complex, hybrid energy solution designed and engineered by Clarke Energy in collaboration with other partners. Controlled Air, Inc. worked with Clarke Energy to create an energy-efficient solution that integrated a Yanmar combined heat and power (CHP) unit and a Yanmar gas heat pump (GHP) system. The core of the microgrid is the 35kW CHP unit, which provides both electricity and high-efficiency hot water for showers and the pool. This is complemented by a solar photovoltaic (PV) array that generates renewable electricity, with a battery energy storage system (BESS) to save surplus energy for later use. A backup gas-fueled generator from Kohler provides an additional layer of resilience, ensuring the facility can remain powered for extended periods.

This innovative system is designed to provide both parallel power during normal operation and “island mode” capability during a grid outage. The entire system is managed by a centralized microgrid controller, which optimizes the different energy sources for maximum efficiency and reliability. The project is expected to reduce the center’s carbon dioxide emissions by 192 tons per year, aligning with the city’s goals for a more sustainable future.

The Middletown Recreation Center microgrid is an excellent example of how communities can invest in infrastructure that not only serves their daily needs but also provides critical support in emergencies. It represents a forward-thinking approach to energy management, combining sustainability with an unwavering commitment to public safety and resilience.

The Middletown Recreation Center’s new system is fully protected by a 20-year parts and labor contract. Controlled Air and Yanmar are committed to providing a reliable, long-term, and energy-efficient solution by guaranteeing dedicated parts and service for the equipment.

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CHP Installation, Southington CT | YMCA

Controlled Air Inc. — Fri, 28 Feb 2025 14:44:38 +0000

SOUTHINGTON YMCA

Controlled Air installed a Yanmar cogeneration system in coordination with a new boiler plant and domestic hot water production to reduce energy costs for the Southington YMCA. Our work included the mechanical demolition and removal of existing oil tanks, boilers, domestic hot water tanks, and remaining equipment from the previous co-generation system. At the heart of the new system, we furnished and installed two 35kW Yanmar high-performance CHP systems with the ability to produce a total of 70kw of power for the facility and hot water to be used in the production of heat and domestic hot water. These systems incorporate a heat exchanger, with a glycol-based system for heat recovery. To increase the efficiency of the new system, we replaced the old, worn-out boilers with two high-efficiency Patterson Kelley Storm ST-2000, 2,000,000 BTU, gas-fired condensing boilers equipped with a BACnet interface.

These new boilers will significantly increase efficiency, while working in conjunction with the Yanmar CHPs to produce domestic hot water and heating at the most efficient rate. We also installed new circulating pumps, associated pump specialties, and the necessary gas piping to the new equipment. To control the system, we installed a new Johnson Controls BMS system to operate the heat exchanger, radiators, boilers, and the cogeneration system.

Yanmar Cogeneration Systems offer significant advantages. By simultaneously generating both electricity and heat, they achieve high energy efficiency, reducing energy costs and environmental impact. The YMCA can lower their reliance on the grid, improving energy security and reducing vulnerability to price fluctuations.

Learn more about cogeneration (CHP)

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Gas Heat Pumps, New Haven CT | The Elm City Bioscience Center

Controlled Air Inc. — Thu, 06 Oct 2022 19:32:51 +0000

Controlled Air Inc. provided mechanical design build support to the Elm City Bioscience building infrastructure upgrades located in New Haven. The bioscience building is 113,620 sq ft which includes 8 stories plus a lower level and mechanical penthouse. The project will be on-going with multiple floors being converted from smaller office spaces to larger open lab space and smaller office areas.

The completed work includes Lab/office suites for BSL-1 and BSL-2 biotech companies. The lab spaces required a minimum of 8 Air Changes per Hour (ACH) of 100% outdoor air, no more than 60% Relative humidity and N+1 redundancy for exhaust. Additionally, two new boilers were installed with 5,000 MBH total capacity.

Controlled Air Inc. installed a Yanmar GHP Heat Recovery System for comfort cooling in the offices and supplemental cooling in labs. One 14-Ton GHP with Heat Recovery was installed for each office suite.

A new Johnson Controls building management system was installed to control and monitor the HVAC system, as well as trend energy usage by each tenant.

More information will be coming as this energy efficient project progresses.

Learn More about Gas Heat Pumps

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Cogeneration (CHP) Naugatuck CT | Naugatuck High School

Controlled Air Inc. — Fri, 11 Feb 2022 18:20:28 +0000

A recent article in Combined Heat and Power Magazine highlighted an energy project at Naugatuck High School. Controlled Air Inc. worked with Advanced Energy Efficiencies to develop a cogeneration installation that will provide 140 kW of electrical power and 820,000 Btus of hot water supply.

Advanced Energy Efficiencies put together a highlight video giving a brief overview of what was accomplished in the project and explained how solar and CHP can make a great team to lower energy costs.

#CHP #cogeneration #energyefficiency #solar
Check Out Page 6 In the Magazine

Read more on YANMAR CHP here

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Cogeneration Waterbury CT | Fascia’s Chocolate

Controlled Air Inc. — Fri, 11 Feb 2022 16:49:43 +0000

Fascia’s Chocolates is a family owned chocolate company located in Waterbury CT. They have been in existence since 1964 and have been winners of multiple awards. As they have grown and their energy demands have increased they decided to make improvements to their existing facility.

Advanced Energy Efficiencies and Controlled Air Inc. worked together to create a high efficiency system using YANMAR gas powered GHP. Prior to installation calculations were done to determine the best system and estimated energy savings. After 7 months running the system has performed even better than expected. Check back soon for more information.

Watch the video below for more information.

Learn More about our Cogeneration Solutions

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Gas Heat Pumps (GHP) Middletown CT | MIDDLETOWN YMCA YANMAR

Controlled Air Inc. — Thu, 16 Sep 2021 17:45:41 +0000

The Middletown YMCA was looking to expand their office space and purchased a historic home located near the facility. Controlled Air Inc. was challenged to find the most efficient solution to both install and run, heating and cooling for the new offices, allow for occupant comfort, while also bringing the home up-to-code. Controlled Air Inc. ran load calculations and determined that a YANMAR VRF (GHP) gas power heat pump system would be the best way to meet their needs. Controlled Air Inc. installed a Yanmar 10-ton VRF GHP, including eight .6 ton wall mounted indoor units, three 1-ton wall mounted units, one 1-ton floor standing indoor unit, one 2-ton floor standing indoor unit, thirteen wire remote controllers and an intelligent touch controller with software. The thirteen controllers allowed each room to control their own temperature, allowing for the best in user comfort. This upgrade provided the Middlesex YMCA with potential savings of over $3000 annually in energy costs.

YANMAR

The YANMAR Variable Refrigerant Flow (VRF) natural gas heat pump (GHP) system provides a flexible way to efficiently heat and cool many different types of buildings. By using natural gas to power a YANMAR gas engine, YANMAR’s VRF system is able to reduce electrical costs by 90% and lower average operating costs by 30% over a standard electric system. By using world class Yanmar gas-engines to drive the system, these reversible air-source heat pumps can give low running costs, reduce CO₂ emissions and use very little electricity. GHP is a well-established technology and Yanmar has been one of the leaders in this field for the last 30 years. By offering Air-to-air (VRF) and Air-to-water GHP systems, Yanmar can provide efficient and cost effective solutions for a wide range of cooling and heating applications.

These systems are ideal in many applications where cooling and heating might be necessary at the same time in different areas of a building such as offices, schools, hospitals, labs and mixed use facilities. For more information:

Learn More about our Gas Heat Pump Solutions

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