Problem: For residential and commercial consumers seeking to reduce their energy consumption and carbon footprint and to promote a more sustainable future for their local communities and economies, variable frequency drives (VFDs) deliver significant efficiency improvements and a quick return on...

With 40-60 kWh per square foot electric usage intensity (EUI) supermarkets and grocery stores have one of the highest EUIs in the commercial buildings sector. Refrigeration accounts for roughly 50% of the electric energy and furthermore relies largely on Hydrofluorocarbon (HFC) refrigerants with...

The goal of this project is to understand the potential of heat pump rooftop unit (RTU) technology to electrify and decarbonize existing commercial building heating loads. Rooftop units are particularly ripe for market transformation as they are ubiquitous in the commercial sector with decades of...

This project is a demonstration and comparison study between conventional Normalized Metered Energy Consumption (NMEC) analysis and a Measurement & Verification (M&V) method which enhances NMEC with rapid & repeatable interventions. The Enhanced NMEC (E-NMEC) with Rapid Interventions (RI) is...

A limiting factor to rapid adoption of air-source heat pumps (ASHPs) for residential retrofit applications is the first costs associated with installing a heat pump system that provides the home’s full heating and cooling loads with direct distribution into all conditioned rooms of the home. This...

This project is a demonstration and comparison study between conventional Normalized Metered Energy Consumption (NMEC) analysis and a Measurement & Verification (M&V) method which enhances NMEC with rapid & repeatable interventions. The Enhanced NMEC (E-NMEC) with Rapid Interventions (RI) is...

Many existing non-residential rooftop package units (RTU) including heat pumps do not have monitoring capabilities where temperature, pressure, and energy are known in real time. This is the typical case found in commercial primary and secondary schools within public school districts. The target...

AESC and ASK Energy propose a California-focused field demonstration and market assessment of a packaged, modular, all-electric CO2 centralized heat pump water heater with load shift capabilities designed for commercial and multi-family buildings. The proposed technology supports electrification...

This project is an open source supervisory control technology development and demonstration of ASHRAE Guideline 36 (G36), ASHRAE 2021. The promise of G36 is that the standardization of the sequence of operations (SOO) allows manufacturers to program and centrally test the control logic and then...

The High Efficiency Dehumidification System (HEDS) technology of interest is a new and patented technology developed in Southern California with energy savings potential for air handlers with chilled water cooling and hot water reheat. The technology was first developed to address dehumidification...