BayREN C&S Training: How the Energy Code Treats Electrification
- Webinar
This course focuses on the Energy and Green Building Code for residential buildings, provides an overview of the current electrification landscape, and highlights how electric appliances are impacted by different aspects of the Building Code as well as planning and zoning.
More Info3C-REN Training: 2025 Energy Code Update for the Building Industry
- Webinar
This course provides an overview of key changes to Title 24 Part 6 Energy Code, with a focus on architects, builders, building department staff and others in the construction industry. We’ll provide background on the reasons behind the changes and impacts for projects, particularly in the Central Coast region.
More InfoI-REN C&S Training: 2025 Energy Code Restructured
- Webinar
Join I-REN and the California Energy Commission to learn about the 2025 Restructured Code! The 2025 Restructured Code was created in response to industry feedback that structuring the Energy Code similarly to other Parts of Title 24 would aid in navigation and use. This “Restructured Code” reorganizes the adopted code language, but has not been formally adopted; it is for informational purposes only, to gather feedback from the industry and inform the development of the 2028 Energy Code. This presentation provides some background into its development, and insight into the new reorganization scheme. Instructor: Allen Wong from the California Energy Commission
More InfoCities and the Environment Symposium
- University Hall, Ahmanson Auditorium Loyola Marymount University Los Angeles, California
This event is convening researchers, practitioners, and community members in Los Angeles on November 20, 2025 to celebrate past successes and future growth and collaboration. This will be a public, conference-style format that will include presentations, discussion sessions, and poster sessions. It will also include networking coffee breaks and a closing “happy hour” reception.
More InfoPast Events
Greenbuild International Conference + Expo
- Los Angeles
Greenbuild is a vibrant community of global green building professionals. Together we use the latest technology, materials and ideas to improve sustainability, resilience, equity, health, and wellness.
More Info3C-REN Forum: Preparing Buildings for Wildfire Resiliency in 2025 and Beyond
- Louise Lowry Davis Center 111 W. Victoria Street Santa Barbara, CA
This forum, Preparing Buildings for Wildfire Resiliency in 2025 and Beyond, will host a diverse panel of experts exploring perspectives on recent wildfire rebuilding efforts, strategies to strengthen building wildfire resiliency, and how recently adopted code updates prompted by wildfires such as AB 130 and Executive Order N-29-25 affect the current rebuilding process.
More InfoBehavior Energy and Climate Change (BECC) Conference
- Hyatt Regency, Sacramento CA
The Behavior, Energy & Climate Change (BECC) conference is the premier conference focused on understanding human behavior and decision making and using that knowledge to accelerate the transition to a low-carbon future.
More InfoTitle 24 Stakeholders: Nonresidential Covered Processes, Envelope, HPWH Utility-Sponsored Stakeholder Meeting
- Online
These webinars provide an opportunity to collaborate on cost-effective proposals to update the California Energy Code and improve energy efficiency and system performance in California buildings. The October 29th meeting will cover the following proposed CASE reports: Process Steam: Flash Steam Reduction and Recovery Process Steam: Condensate Return Compressed Air: Air Drying Modify existing chiller/boiler requirements to account for AWHP/WWHP AWHP Compliance Pathways and Requirements (glycol concentration only) Update AWHP Requirements
More Info3C-REN: Renewable Energy, Energy Storage and Resiliency
- CEC’s Environmental Hub 1219 State Street Santa Barbara, CA
Enjoy food, drinks, and great company at the last event in 3C-REN's High-Performance Happy Hour Series! Whether you’re a homeowner, architect, or simply curious about electrification, join them to learn how renewable energy and storage are shaping the building decarbonization landscape.
More InfoTitle 24 Stakeholders: Nonresidential Water Heating, HVAC, Envelope, Utility-Sponsored Stakeholder Meeting
These webinars provide an opportunity to collaborate on cost-effective proposals to update the California Energy Code and improve energy efficiency and system performance in California buildings. The October 23rd meeting will cover the following proposed CASE reports: Water Heating: ECM Circulator Pump with Controls Water Heating: Require return to primary configuration Water Heating: Unitary HP/ER hybrid heaters HVAC Fault Detection and Diagnosis (FDD)
More InfoI-REN C&S Training: 2025 Code Series: CALGreen
- Online
This course focuses on Title 24, Part 11, the California Green Building Standards, incorporating the 2025 code changes that take effect January 1, 2026. We’ll review background of the code, the logistics of implementation and the specific requirements for residential and non-residential construction. The session will be simulcast in Spanish.
More InfoHeat Pump Water Heater Day 2025
- Online
Join New Buildings Institute for the fourth annual Heat Pump Water Heater Day, a day dedicated to heat pump water heater (HPWH) education and awareness on residential and commercial heat pump water heaters. On Heat Pump Water Heater Day, connect with advocates, manufacturers, installers, homebuilders, and HPWH owners to showcase ENERGY STAR certified HPWHs and the ways they help us increase energy efficiency and fight climate change.
More InfoExploring Nonres Building Stock with the Cost Effectiveness Explorer
- Webinar
Learn more about the latest Cost Effectiveness Explorer updates & how the new data analysis capabilities can inform reach code policymaking. Join us as the Statewide Local Energy Codes Cost Effectiveness Explorer team presents the most recent updates to the Explorer.
More InfoConverge San Diego
- UC San Diego Park & Market. 1100 Market St, San Diego, CA
Converge San Diego invites architects, designers, planners, engineers, policymakers, students, and sustainability advocates to come together and explore how the power of design can address today’s most urgent challenges. From climate resilience and housing equity to community health and adaptive infrastructure.
More InfoSustain SoCal: 16th Annual Energy Event Energy in Perspective
- UCI Beall Applied Innovation UC-Irvine, Irvine CA
This year’s program will take a comprehensive look at the challenges and opportunities in delivering clean, reliable, and affordable energy—both today and into the future.
More InfoLos Angeles Business Council’s 19th Annual Sustainability Summit
- University of Southern California, Town & Gown Los Angeles
In the wake of the recent wildfires in Los Angeles County, the Summit will focus on how we can rebuild and plan a stronger, more sustainable, and climate-ready Los Angeles.
More InfoBayREN C&S Training: Solar Photovoltaic and Battery Storage Systems
- Online
This course will cover solar photovoltaic (PV) and battery storage system requirements for all building types. Both 2022 Energy Code and equipment requirements will be discussed, along with a preview of expected changes in the 2025 Energy Code. The training will also provide an overview of requirements for verifying code compliance for PV and battery systems.
More InfoI-REN C&S Forum: Resiliency in a Changing Energy Landscape
- Online
Join I-REN on Tuesday, October 7, from 9:00AM-11:00AM, for its Fall 2025 Forum, focused on resiliency in a changing energy landscape. Four speakers, representing both government and private sectors, will discuss current and upcoming changes to the building energy space in California. These include existing methods that can be implemented to increase building efficiency and occupant comfort and safety during stresses such as extreme heat. I-REN’s resources to support these efforts will also be discussed.
More Info2025 Electric Program Investment Charge (EPIC) Symposium
- Hybrid: Virtual or In-Person (California Natural Resources Agency building, Sacramento)
The California Energy Commission, in collaboration with the Pacific Gas and Electric Company, Southern California Edison Company, and San Diego Gas & Electric Company will host the 11th annual Electric Program Investment Charge (EPIC) Symposium. The symposium will feature panel discussions with clean energy leaders, policy makers, researchers, and entrepreneurs focused on energy equity and affordability, battery safety, next-generation vehicle charging, large building decarbonization, and more!
More InfoClean Mobility Forum
- DoubleTree by Hilton Hotel, downtown Fresno
The Clean Mobility Forum, funded by the California Air Resources Board and the California Energy Commission, is a one-day in-person event focused on shared mobility and clean transportation where you can network and connect with like-minded peers, create partnerships, and problem-solve in a supportive, community environment.
More InfoNet Zero Conference
- Los Angeles Convention Center, South Hall
This is the 12th annual convening of climate leaders to re-envision the built environment and inspire a net zero future.
More InfoNonresidential Alterations Cost-Effectiveness Study Webinar
- Online
The Statewide Local Energy Codes team will present the results of the cost-effectiveness study documenting cost-effective reach code options that exceed the minimum requirements of the 2025 Building Energy Efficiency Standards for alterations to existing nonresidential buildings.
More InfoSingle-Family AC to Heat Pump Replacement Cost-Effectiveness Study
- Webinar
Statewide Local Energy Codes team presents the results of the cost-effectiveness study for an ordinance encouraging single family homeowners to install a heat pump when replacing an existing air conditioner. The team will provide an overview of the study, measure specifications and cost and savings impacts.
More Info2024 Updates to the 2022 Single Family Retrofits Cost-Effectiveness Study
- Webinar
The Statewide Local Energy Codes team presents the results of the 2024 updates to the Single Family Retrofit Cost-Effectiveness Study. Attendees will learn about the most recent cost-effectiveness analyses, both from the published report and from the updated data in the free online Cost-Effectiveness Explorer tool.
More InfoSimplified Flexible Path Policymaking with the Cost-Effectiveness Explorer
- Webinar
The Cost-Effectiveness Explorer team will present new capabilities in the free online tool that local jurisdiction staff can use to craft effective flexible path measures more easily.
More InfoResults from the 2022 Multifamily New Construction Cost-Effectiveness Study
- Webinar
This webinar will present the results from the most recent cost-effectiveness analysis for multifamily new construction, which supports the development of reach codes under the new 2022 Building Energy Efficiency Standards (effective 1/1/2023). The presenters will provide results for all packages studied across all 16 California Climate Zones (CZs).
More InfoReaching Beyond New Construction: A Panel Discussion
- Webinar
This is a panel discussion with local jurisdiction staff on existing building policy adoption. A collaboration between Building Decarbonization Coalition, BayREN, 3C-REN, California Climate & Energy Collaborative and the Statewide Reach Codes Program, this webinar is reserved for local jurisdiction staff.
More Info2025 Energy Code Cycle Stakeholder Meeting: Single Family and Multifamily
- Webinar
In this webinar, the Statewide CASE Team will introduce the audience to the Single Family and Multifamily measures that are being considered for the 2025 T24 energy code and seek to garner participation from new and existing stakeholders.
More InfoReach Codes Newcomers Webinar Series: Session 5
- Webinar
Session 5, Implementation: Monitoring reach code implementation, checklists and training, examples from specific jurisdictions, and more.
More InfoDesigning Local Policies with the Cost-Effectiveness Explorer
- Webinar
Launched in the fall of 2020 and used by 100+ local jurisdictions statewide, the Cost-Effectiveness Explorer now lets users create and visualize impacts from overarching policies at the local level. This webinar will walk through the free online tool to enable attendees a "hands-on" look at how to explore the new policy-building tools, and provide plenty of time for Q&A.
More InfoReach Codes Newcomers Webinar Series: Session 4
- Webinar
Session 4, Reach code ordinance options: Renewing existing reach codes, developing and adopting new reach codes for new and existing buildings, model ordinances, and more.
More InfoReach Codes Newcomers Webinar Series: Session 3
- Webinar
Session 3, Cost-effectiveness analyses: Introduction to terms, when an analysis is required, what makes a measure cost effective, types of inputs and considerations, how to obtain and use a cost-effectiveness analysis, energy code terms and metrics, and more.
More InfoReach Codes Newcomers Webinar Series: Session 2
- Webinar
Session 2, Reach code process & timing: The general steps of developing and drafting a reach code, including policy development, timing considerations, preparing for Council, and support resources to help you throughout the process.
More InfoReach Codes Newcomers Webinar Series: Session 1
- Webinar
Session 1, Introduction: The what and why of reach codes, including an overview of the process and timing, legal considerations, and more.
More InfoReach Codes Results: Residential Retrofits Cost-effectiveness Webinar
- Webinar - Online
Please join us for a presentation on the results of our newly-completed analysis of residential retrofit measures and measure packages. A preliminary cost-effectiveness study on existing residential building upgrades was published by the statewide Codes & Standards team in February 2020. At that time, the research team identified a range of additional options that merited further study. These include: Revisiting base case assumptions Exploring additional HVAC upgrade options Evaluating additional building envelope improvements Assessing lighting: luminaire replacements in addition to lamp replacements Evaluating electrification and electrification-ready measures at equipment change-out Considering the effectiveness of PV system installation when building an addition Requiring additional efficiency upgrades when installing PV Study authors will present their findings and answer participant questions on all the measures and measure packages analyzed.
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