Kicking off 2025 training series: A successful first session on heat pump RTUs and ERVs

Mar 5, 2025

Next Gen Rooftop Unit (RTU) initiative began its new 2025 training series with a successful first session on how to support customers' energy goals with efficient RTUs.

Final Performance Report: Dual Fuel RTU Monitoring

Feb 10, 2025

This report summarizes the performance of the 15-ton Daikin Rebel dual fuel heat pump rooftop units (RTUs) RTU2F and RTU3F serving the back zones of 47-01 Queens Blvd, Sunnyside, NY 11104. The performance of these heat pump RTUs was characterized in terms of operating modes, delivered sensible capacity, efficiency, energy inputs, and emissions.

Research

An image of HVAC equipment with the New York skyline in the horizon.

Teaming up with national partners for heat pump rooftop unit initiative

Nov 21, 2024

Read how partnerships between Next Gen RTUs and Department of Energy’s Heat Pump Accelerator are driving the adoption of heat pump RTUs nationwide.

A team of people next to HVAC equipment.

Savings potential of dual fuel heat pump rooftop units and energy recovery ventilators in Minnesota

Oct 9, 2024

This report provides an analysis of energy and bill savings achievable through the use of dual fuel heat pump RTUs and energy recovery ventilators (ERVs) in Minnesota’s commercial buildings.

Research

High-Performance RTU Market Characterization

May 6, 2024

In February 2023, Center for Energy and the Environment (CEE) contracted with Cadeo to conduct a baseline market characterization for commercial rooftop units (RTUs) to inform the development of a high-performance RTU initiative.

High-Performance RTU Market Transformation Plan

May 3, 2024

The Market Transformation Plan is the culmination of the program development stage, where extensive research and planning is done to prepare the initiative for market launch. The purpose of this plan is to summarize key contextual information, lay out the basic program logic and desired end state that informs our market strategy, and present the fundamental market support activities necessary for success.

High-Performance RTU Energy Savings & Market Evaluation Plan

May 3, 2024

As a market transformation program, ETA will work to overcome market barriers, leading to greater market adoption of targeted technologies, and ultimately, energy savings. In the initial years of a market transformation program, energy savings can be small as it can take time to grow the market.

Overcoming the Market Barriers for Rooftop Unit (RTU) Retrofit Enhancement

May 6, 2023

This study sought to determine market barriers to implementing retrofit technologies available for packaged rooftop units (RTUs) and determine ways to overcome them.

Research

Characteristics and Performance of Commercial Rooftop Units

Jun 3, 2017

Packaged roof-top units (RTUs) are ubiquitous on commercial buildings throughout the United States because of their low capital cost, reliability and well-developed service and distribution network. There is anecdotal evidence, however, that these systems tend to operate inefficiently and sub-optimally. To validate or refute this evidence, we conducted a multi-level field study to characterize the RTUs in Minnesota.

Research

Energy Recovery in MN Commercial and Institutional Buildings

Apr 3, 2017

This project investigated the expectations and the operating performance of ERV units in Minnesota commercial and institutional buildings. The project team used available data to characterize commercial and institutional ERVs in Minnesota and then monitored the performance of representative ERV systems, identified and rectified problems that diminish ERV performance, and documented the energy use and costs associated with under-performing ERVs.

Research

News & Updates

Latest News & Updates