Introduction to Lighting Controls

Learn about lighting controls technologies, relevant codes and standards, how to identify energy saving applications, and more.

C2.2 Derating and Thermal Bridging

This specialized course delves into the critical aspects of thermal bridging and derating within the framework of the commercial provisions of the Massachusetts Stretch Energy Code. Participants will explore the intricacies of these concepts and learn how to navigate the code's requirements to achieve optimal energy performance in commercial building design and construction.

Building Envelope Assessment Training (day 2 of 2)

Participants in this class will learn how to assess commercial building envelopes for energy saving opportunities and improved comfort. Note that this two-day training is an expanded and more interactive version of the one-day building envelope training we offered last March (in person) and June (online), with the addition of new exercises to practice applying what you are learning, as well as more content on how to present envelope upgrades to customers.

The ABCs of HVAC: Comfort & Efficiency (Part 2)

This is the second session in our HVAC Energy Efficiency Basics webinar series. Some of the sessions will build on each other, but you may choose to participate in any or all of them.

MAEEP - Building Ventilation and Heat Recovery for HVAC Systems

Learn about ventilation requirements and approaches, and how heat/energy recovery can be used to increase efficiency of HVAC systems.

Seal in Your Savings: Why Insulation and Air Sealing Matters for the Heating Season | Massachusetts | Mass Save

November 14, 2025

Now’s the time to insulate. See how improving your home’s insulation and air sealing boosts comfort, reduces energy use, and helps you save for the heating season.

Carlisle Kids' House | Case Studies | Mass Save

Carlisle Kids’ House is a nonprofit childcare center in Carlisle, Massachusetts, serving toddlers through fifth grade students with year-round programming as well as summer camp. When Executive Director Kristin Tully stepped into her role, she assumed responsibility of a building with more than a decade of deferred maintenance and soon turned her attention to identifying opportunities for long‑term energy savings and operational efficiency.

Golden Home – Marshfield | Case Studies | Mass Save

Home energy upgrades and crawlspace insulation helped Joanne cut energy use, earn incentives, and preserve her historic home’s comfort and charm.

Renters | Mass Save

As a renter, there are many ways you can save energy and increase the comfort of your home. The Sponsors of Mass Save offer a variety of incentives, programs, and support to help renters enjoy all the good things energy efficiency brings.

What is a Heat Pump and When Should You Make the Switch? | Massachusetts | Mass Save

December 17, 2025

Learn what a heat pump is and when you should consider switching to it. Find out about ways you can save energy with heat pumps while using rebates

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