November 2026 Newsletter
Landmark Legislation Encourages Electrification Across California, homeowners, renters, and contractors alike will soon see the benefits of new State legislation that streamlines permitting, offers virtual inspections, strengthens ratepayer protections, and […]
Compliance Document Registration – What AHJs Should Look For
For residential projects, the California Energy Code has long required mechanical system design, including calculations for heating and cooling loads, appropriate equipment selection, and design of ducted distribution systems. Until recently, however, rules of thumb and rough estimates were common practice.
ACCA Manuals – Tips for Residential Load Calcs
For residential projects, the California Energy Code has long required mechanical system design, including calculations for heating and cooling loads, appropriate equipment selection, and design of ducted distribution systems. Until recently, however, rules of thumb and rough estimates were common practice.
2025 Changes to CALGreen Nonresidential EV Charging
As we adjust to the 2025 code cycle, the 2025 CALGreen Code introduces important changes and clarifications to EV charging requirements. In January, we sorted through the multifamily updates. Now, we’ll take a closer look at nonresidential EV charging, including expanded requirements for new construction, parking lot alterations, and readiness for future EV truck charging.
2025 Energy Code Adds IAQ Access Requirements for Multifamily Residences
Among the changes to the energy code requirements for multifamily housing are a handful of measures that support improved indoor air quality (IAQ) by addressing gaps in access to ventilation equipment.
May 2026 Newsletter
Goleta Goes Electric with Fee Waivers for Heat Pump Permits The City of Goleta has made electric heat pumps even more affordable for residents by waiving permitting fees for projects […]
Ensuring Access to Heat Pump Water Heater Filters
Heat Pump Water Heaters (HPWH) continue to be a hot topic, and one installation issue that keeps showing up in the field is blocked access to the heat pump air filter.
February 2026 Newsletter
2025 By the Numbers In 2025, 3C-REN continued to offer training, incentive programs, and technical assistance to support a more energy-efficient and resilient Central Coast. Here are our preliminary 2025 […]
Heads Up on Organizational and Language Changes in the 2025 Energy Code
The 2025 California Energy Code is here! While many of the updates follow familiar patterns—like more stringent building envelope requirements, expanded solar and battery provisions, and continued push toward all-electric buildings—this cycle also introduces several key organizational and language changes.
Sorting Through Requirements for EV Charging in Multifamily Construction
As California works to expand access to electric vehicles for more residents, the 2025 California Green Building Code (CALGreen) increases requirements for multi-family EV charging infrastructure under Section 4.106.4, Electric Vehicle (EV) Charging for New Construction.