Energy Disaggregation and NILM – If You Can Measure It, You Can Improve It


Po-Yu Wang
.Non-Intrusive Load Monitoring (NILM), also referred to as Energy Disaggregation, is a technology using either sensor-based or Software-as-a-Service (SaaS) solutions to identify granular energy consumption data at appliance-level from whole-home energy data. The Home Energy Management Systems market has been valued at $7.7 billion in 2019 and is expected to grow to $26.9 billion in 2025 with a 23.3% CAGR.AttractivenessNILM’s real-time appliance-level monitoring of energy consumption is extremely beneficial for energy efficiency and demand response. It provides more agile grid... Read More »

Heating, Ventilation and Air Conditioning (HVAC) Systems, the Next Building Load to Optimize


Louis Brasington
Heating, ventilation, and air conditioning (HVAC) systems are a building's main energy consumer, accounting for 40% of all electricity used. Measures to update and replace existing heating and cooling systems could improve the energy efficiency of these systems by around 43%. Unfortunately, the cost and payback on energy savings from hardware upgrades/replacements are often not attractive enough for building owners. With the advent of low-cost IoT solutions, software is becoming an increasingly popular option to modernize monitoring and analyzing systems... Read More »

Unleashing Alexa: How transactive energy could unlock residential energy optimization


Ken-Ichi Hino
In our Part 1 on transactive energy (TE), we looked at the path to implementing TE and the types of companies involved. Steve Widergren, principal engineer at Pacific Northwest National Laboratory, and Ed Cazalet, CEO at TEMix, Inc., were interviewed for these posts. I have a confession: I’m slightly obsessive about not running my dishwasher, laundry, and dryer between 7am and 9pm. Why? For the savings… hmm… well, I actually don’t save any money from being a good citizen of the grid... Read More »