KNOW THE WORK. UNDERSTAND THE SYSTEM.
A practical reference center for homeowners, property owners, business owners, facility teams, general contractors and designers. Explore electrical systems, safety, code, lighting, power, EV charging, solar and more.
SEARCH THE RESOURCE CENTER
A clearer way to understand electrical work.
Electrical systems are connected. A panel upgrade can affect available capacity. Lighting can affect energy use and controls. EV charging can affect load requirements. Solar and battery systems can affect service equipment and code requirements. This resource center organizes the major topics so you can understand what matters before a project begins.
Residential Electrical
Panels, safety, lighting, EV charging, backup power and more.
Commercial Electrical
Distribution, lighting, maintenance, build-outs and specialty systems.
Safety + Code
California requirements, permits, standards and safety resources.
Official Resources
Direct access to authoritative electrical and building resources.
Electrical systems for the home.
Understand the systems that support a modern home, from electrical panels and protection to lighting, EV charging and backup power.
Electrical Panel Upgrades
Understand when electrical capacity and panel equipment may need to change.
Home Electrical Safety
A practical reference for recognizing common electrical hazards in the home.
Electrical Warning Signs
Learn the warning signs that can indicate an electrical problem.
GFCI & AFCI Protection
Understand two important forms of electrical protection used in modern homes.
Surge Protection
Learn why sensitive electronics and modern homes may benefit from surge protection.
Home EV Charging
Electrical considerations and safety information for EV charging at home.
Residential Energy Code
Current California residential compliance resources for the 2025 Energy Code.
Electric-Ready Homes
California resources covering electric-ready requirements and future electrical equipment.
Home Lighting
Explore LED lighting basics, efficiency and residential lighting considerations.
Electrical infrastructure for business.
Resources for commercial properties, tenant improvements, facilities, hospitality, retail, offices and other nonresidential environments.
Commercial Electrical Systems
California’s current nonresidential Energy Code resources.
Commercial Lighting
Current California resources covering nonresidential lighting.
Commercial Lighting Upgrades
Energy-efficiency considerations and current ENERGY STAR resources for commercial lighting.
Lighting Controls
California resources covering lighting controls and current compliance requirements.
Energy Management
Understand practical energy-management measures including lighting, controls and energy tracking.
Commercial Electrical Permits
City of San Diego electrical permitting and plan requirements.
Electrical Construction Safety
OSHA electrical safety information for construction environments.
Electrical Contractors
OSHA resources relevant to electrical contractors and workplace safety.
C-10 Electrical Contractor
California’s official classification and scope for electrical contractors.
Capacity, distribution and protection.
Power systems determine what a property can safely support today and what it may be prepared to support tomorrow.
Electrical Load & Capacity
Understand the relationship between electrical demand, capacity and equipment.
Panel Upgrades
Learn why electrical panels may need to be upgraded as loads change.
Electrical Service
Electrical service work may require permits, plans and inspections.
Surge Protection
Protection considerations for electronics and electrical equipment.
NEC / NFPA 70
The National Electrical Code is the primary electrical installation standard in the U.S.
Backup Power
Electrical permitting and project considerations for backup power systems.
Lighting is electrical design, not decoration.
Explore residential and commercial lighting, controls, efficiency, exterior applications and the California requirements that shape modern lighting systems.
Residential Lighting
Fundamentals of efficient residential LED lighting and fixture selection.
Commercial Lighting
Current California resources covering nonresidential lighting requirements.
LED Lighting Upgrades
Commercial lighting upgrade considerations and current ENERGY STAR resources.
Lighting Controls
California resources covering lighting controls and current compliance requirements.
Occupancy & Automatic Controls
Explore California’s current lighting-control compliance resources.
Energy-Efficient Lighting
Current California residential lighting compliance resources.
Outdoor Lighting
California’s current nonresidential Energy Code resources include outdoor lighting.
Sign Lighting
Current California resources covering sign-lighting requirements.
Efficient Lighting Products
Explore current ENERGY STAR certified lighting products and efficiency resources.
Charging starts with electrical capacity.
EV charging is an electrical infrastructure decision. The right solution depends on the property, available capacity, equipment and applicable requirements.
Home EV Charging
Safety considerations for EV charging in residential settings.
EV Charging Permits
City of San Diego electrical permitting information for EV charging systems.
EV Charging Infrastructure
UL Solutions resources covering EV charging infrastructure testing and certification.
Electric-Ready Infrastructure
California Energy Commission resources for future electric equipment.
EV Load & Panel Capacity
Understand why available electrical capacity matters before adding charging.
Electrical readiness for a changing grid.
Solar PV and battery energy storage connect directly to a property’s electrical infrastructure, capacity and applicable code requirements.
Solar PV
California’s current residential resources include solar photovoltaic requirements.
Battery Energy Storage
California’s residential compliance resources include battery energy storage systems.
Nonresidential Solar + Storage
Current California nonresidential resources for PV and battery energy storage.
Solar & Battery Readiness
Explore California’s current electric-ready and future-system infrastructure resources.
Solar & Electrical Permits
City of San Diego permitting information for electrical and PV projects.
Know the standards that govern the work.
Electrical requirements vary by project and jurisdiction. These official resources provide the starting point for understanding applicable standards, permits, licensing and safety requirements.
NEC / NFPA 70
The National Electrical Code and official NFPA resource.
California Energy Code
California’s official Building Energy Efficiency Standards and related resources.
2025 California Energy Code
Current statewide Building Energy Efficiency Standards information.
San Diego Electrical Permits
Official City of San Diego electrical permit requirements and processes.
San Diego Codes & Regulations
Official local codes, regulations and development requirements.
CSLB C-10 Electrical Contractor
Official California classification for electrical contractors.
OSHA Electrical Construction
Federal workplace safety resources for electrical construction.
ESFI Electrical Safety
Electrical safety education for homes, workplaces and communities.
CPSC Home Electrical Safety
Official home electrical safety checklist from the U.S. Consumer Product Safety Commission.
UL Product Certification
Official UL Solutions information about product certification and evaluation.
Go directly to the source.
A curated collection of official government, standards and safety resources for deeper research, project planning and professional reference.
National Electrical Code / NFPA 70
Official NFPA resource for the National Electrical Code.
Building Energy Efficiency Standards
California’s official Energy Code resources and compliance information.
Electrical Permits
Official electrical permit information, requirements and application guidance.
C-10 Electrical Contractor
Official California classification and scope for electrical contractors.
Electrical Construction Safety
Federal workplace safety information for electrical construction.
Electrical Safety Resources
Electrical safety education and practical reference materials.
Home Electrical Safety Checklist
Official consumer safety checklist for electrical systems in the home.
Product Certification
Official information on product certification and evaluation.
Commercial Lighting
Official resources for commercial lighting products and efficiency.