CalTRACK specifies a set of methods to standardize the way changes in energy consumption are measured and reported. When CalTRACK is implemented through open source software, these methods can be used to support procurement of energy efficiency, electrification, and other distributed energy resources. Others can use CalTRACK as a best-practices guide to calculating meter-based changes in energy consumption.
CalTRACK methods describe a process of arriving at a calculation of avoided energy use.
The core calculation is a counterfactual - the estimated consumption of energy in a building following an intervention as if the intervention had not taken place.
Data requirements include a full year of pre-intervention consumption data, corresponding local weather data, and a date for the intervention.
CalTRACK includes methods that describe how to use monthly billing data, as well as interval data from smart meters to calculate hourly or daily derivatives.
Model uncertainty is addressed by aggregating sites into portfolios with guidance available to calculate portfolio level uncertainty.
CalTRACK solves the problem of methodological implementation variance. It is designed to be paired with open-source software for a transparent approach to measurement and verification of changes to building energy use.
The primary use case is pay-for-performance, where site-based energy savings are paid based on realized changes in energy consumption.
A similar use case is support for electrification and demand-side distributed energy resources, where time and locational impacts are important to quantify.
CalTRACK methods are also useful for estimating the impact of economic factors and upstream incentives on changes in site level energy consumption. This value is commonly understood as an input into determining net savings.
The CalTRACK Process
CalTRACK methods are designed to act similarly to a living Constitution. They are developed through a public process involving many dozens of stakeholders. Formal updates to the methods guidance are informed by issues that arise during actual deployments.
All CalTRACK working group proceedings are open to the public and recordings are available. Debate and deliberation occur within a publicly available forum where suggestions for future improvements are catalogued.
To date, the only open-source software implementation of the CalTRACK methods is the OpenEEmeter. This tool is designed for site-based metered savings calculations and normal weather year adjustments.
For assistance running CalTRACK on large numbers of projects, contact us.