New York City is reducing its building energy use and carbon emissions
We provide over 1,500 free measurement tools and guidance resources that help City agency employees get it done.
New to Energy Tools?
Getting Started
Whether this is your first time borrowing or your first time on our website, this is the place to start.
Guidance
Learn about the guidance we offer that can help you make the most of the tools you borrow.
Coaching
Get live, one-on-one assistance through CUNY BPL’s innovative coaching program.
Contact Us
Need help selecting tools or navigating the website? Get in touch.
Know what you're looking for?
Tools
Take a look at our catalog of loggers, sensors, meters and other tools you can reserve for free.
Tool Kits
Bundled tools that offer a convenient way to reserve multiple tools for specific applications.
Measurement Techniques
Guidance for measuring energy consumption and performance of building equipment.
BRT Playbook
Guidance for using your BAS to analyze building plant and system operation over time.
About Us
NYC Energy Tools is a new hub for City agency facility personnel that brings together the free tool lending and advisory services that the Field Equipment Lending Library (FELL) has been providing since 2013, plus training resources and guides developed by CUNY Building Performance Lab and NYC DCAS Division of Energy Management (DEM) to help agencies carry out energy reduction projects.
For more information, Getting Started is the place to begin. If you have specific questions, our team is ready to help – please contact us.
Updates 🔔
June 22, 2026
We've Been Busy Making Some Upgrades
We are excited to share the latest improvements made to the user interface and experience on our website. Browse the site and let us know what you think!
July 16, 2025
Solar PV System Maintenance: Ensuring Performance Through Accurate Monitoring
Regular maintenance is critical for the performance and longevity of solar PV systems—and verifying accurate voltage and current readings plays a key role. A True RMS AC/DC Clamp Meter offers real-time measurements that help detect issues like faulty panels or wiring problems, ensuring your system operates safely and efficiently.
Feb 21, 2025
Free tool demonstrations at City agencies
We offer live, expert tool demonstrations at your agency! If you serve as an Energy Manager for a New York City Agency and your team is responsible for gathering measurements for pre- and post-retrofit analysis projects.
Sep 5, 2023
Updated noBAS Building Re-tuning Guides
Checkout our updated guides for implementing Building Re-tuning in buildings without a building automation system.
Jul 3, 2022
Want us to add new tools to the catalog?
If you need something we don't have in the catalog, let us know!
Sep 16, 2022
Measurement and Analysis Resources
Browse through our measurement guides for evaluating pre- and post-retrofit conditions of common retrofits.
Featured Guidance
Building Equipment
Learn about the various mechanical and electrical plants, systems and components that drive energy consumption in buildings.
Measurement and Analysis
Find comprehensive guidance for evaluating pre- and post-retrofit conditions of equipment that drives building energy consumption.
Building Re-tuning
Assess and diagnose resets, setpoints, schedules and outside air control of major systems using data loggers and sensors based on PNNL’s Building Re-tuning Guides.
Featured Tools
Solar True RMS AC/DC Clamp Meter
Made for technicians working with high voltage DC systems. It's ideal for solar PV installations, wind power, electric railways, data centers, and battery banks.
Hot Wire Anemometer
Built for the HVACR professional, for traversing a duct and automatically calculating CFM with real-time air velocity, or temperature measurements.
Power Quality Clamp Meter
Combines the functions of a clamp meter, oscilloscope, data logger and digital power meter in one device.