Upcoming Events
3C-REN Training: 2025 CALGreen – Residential
- Online
The California Green Building Standards, or CALGreen (Title 24, Part 11), is a wide-ranging code covering aspects of site design, electric vehicle charging infrastructure, water efficiency, indoor air quality and much more. In this course, the presenters focus on residential Mandatory Measures and Tiers, providing examples of implementation and highlighting 2025 changes throughout.
More InfoGetting In the Front Door—The Many Pathways to a Career in Decarbonization
- Online
This one-hour webinar will highlight entry-level and advanced opportunities in the green workforce, with a focus on expanding access and inclusion. Hear from leaders and emerging professionals about workforce training, professional development, and hiring practices that open doors to careers. Featured perspectives will include utility contractor training, undergraduate career development, and hands-on technical training programs. This discussion will be valuable for job seekers, students, career changers, and employers alike.
More InfoI-REN C&S Training: Electrification in the 2025 Energy Code
- Online
This training will cover energy code requirements that favor all-electric designs and quantify the compliance impact of heat pumps, heat pump water heaters, PV & battery, and other electric systems. It will also cover the why and the how: why the California energy code encourages electric systems and some lessons from the field on how to achieve efficient all-electric designs with manageable utility costs and satisfied customers. Presenters will also show how to model all-electric systems in the CBECC energy code compliance software.
More InfoCCR REN Event: 2025 Energy Code Roundtable for Building Departments
- Online
In this series, the presenters will focus on areas of energy code compliance that are often challenging for building departments, either at plan review or field inspection or both. To provide an interactive and responsive conversation, they will solicit questions from participants ahead of time and allow time during the presentation to ask follow-up questions, share ideas and swap stories. July Focus: Heat Pump Water Heaters – What needs to show up on the plans, what may get missed in the field, and best practices for installation that are now code requirements.
More InfoSmart Landscape Solutions: Water, Shade & Resilience Strategies
- Online
Join the presenters for a practical, implementation-focused discussion on landscape strategies that are working across California today. This is not a theoretical overview; speakers will share project examples, lessons learned, and tactics attendees can take back and apply to their own properties.
More InfoBayREN C&S Training: Residential Alterations
- Online
This course reviews requirements for and how to process residential alterations, such as HVAC changeouts, window replacements, and water heater replacements, to ensure compliance with the Energy Code.
More InfoPast Events
17th Annual California Climate and Energy Forum
- Universal City
The CCEC Forum brings together several hundred local government staff, elected officials, and community organizations, to collaborate and learn from each other as they work to advance fair and equitable climate change and energy practices. This event will feature engaging sessions, expert plenaries and keynotes, and new innovative activities to help climate and energy leaders and practitioners connect to learn about innovative projects and strategies, share best practices, and troubleshoot challenges.
More InfoI-REN C&S Training: Stay Compliant - What’s New in Nonresidential Buildings (Part 2)
- Webinar
Join I-REN and Energy Code Ace for an engaging two-part session focused on the 2025 Title 24, Part 6 standards for residential buildings in California. Participants will explore the latest code updates, ask questions, and connect with peers. This course is ideal for plan examiners, building inspectors, permit technicians, and anyone looking to stay current on California’s residential building requirements. Note: this is Part 2 of a two-day course. Part 1 will take place on June 9th, from 9AM - 11AM. Attendance at both sessions is required to complete the class.
More Info2026 CEC/EPRI Electrification Summit
- In-Person: Main Auditorium, California Natural Resources Agency 715 P Street Sacramento, CA 95814
The California Energy Commission (CEC) and the Electric Power Research Institute (EPRI), in conjunction with the Energy Transition Coordinating Council (ETCC), will host the 2026 CEC/EPRI Electrification Summit on June 10, 2026.
More InfoI-REN C&S Training: Stay Compliant - What’s New in Nonresidential Buildings (Part 1)
- Webinar
Join I-REN and Energy Code Ace for an engaging two-part session focused on the 2025 Title 24, Part 6 standards for residential buildings in California. Participants will explore the latest code updates, ask questions, and connect with peers. This course is ideal for plan examiners, building inspectors, permit technicians, and anyone looking to stay current on California’s residential building requirements. Attendance at both sessions is required to complete the class. Note: this is Part 1 of a two-day course. Part 2 will take place on June 11th, from 9AM - 11AM.
More InfoBayREN Forum: Code Conversations: Collaborative Solutions for Energy Code Compliance
- In-Person: 375 Beale Street San Francisco, CA 94105
Join BayREN and the California Energy Commission (CEC) for a special in-person, interactive regional Forum focused on how we can support building departments with Title 24 Part 6 energy code compliance.
More InfoI-REN C&S Webinar: ECC (formerly HERS) Registry
- Webinar
Join I-REN and Russ King for a one-hour informational session and Q&A on the ECC (formerly HERS) Registry. Learn about the most important changes in the transition from HERS to ECC, relevant terminology, and what will and won’t change in daily usage of the Registry.
More Info3C-REN Training: 2025 Energy Code in Practice: Nonresidential
- Webinar
This session is part of an ongoing Energy Code training series, in which the presenters walk through key components for each building occupancy type, providing sample details, photos of installations and potential pitfalls to avoid. Highlighting 2025 changes throughout, this course is intended for designers, builders and building officials. Bring your questions and join in the discussion. This session focuses on nonresidential building types.
More InfoResults for 2025 Multifamily Cost-Effectiveness Studies
- Webinar
Join the Local Energy Codes technical team as they present the results for both the Multifamily New Construction and Alterations cost-effectiveness analyses during this webinar.
More InfoSingle Family New Construction Cost-Effectiveness Study Results
- Webinar
Join us as the Statewide Local Energy Codes team presents 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 single family new construction.
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 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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