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A website calculator that can calculate how much you can save by switching to ENERGY STAR certified products.

A FAQ explaining the purpose of the Energy Independence and Security Act, a law which sets energy efficiency standards for lightbulbs.

A website explaining why homeowners should install ENERGY STAR certified lightbulbs, which helps to save homeowners on utility bills and protect the environment.

Website providing comparison charts and reviews of battery energy storage systems for solar power systems.

Website providing comparison charts and reviews of hybrid inverters for solar power systems.

Website providing comparison charts and reviews of off-grid inverters for solar power systems.

Website article describing the advantages and disadvantages of AC and DC battery energy storage systems and inverters for solar power systems.

Website article comparing DC and AC batteries and explaining that DC batteries have black start ability to restart from solar power while providing AC batteries need grid power to restart if fully discharged.

Website article describing the way solar panels are coupled to AC and DC battery energy storage systems.

Website article describing pros and cons of DC and AC batteries and explaining that AC batteries are less expensive than DC batteries.

Webpage for the CEC’s Modern Appliance Efficiency Database System

List of appliance brands and models, showing their performance and efficiency as tested by the appropriate standard.

Web page describing the basics of how to size and build a battery bank for electricity storage.

Article describing a case study in which a whole-house battery and PV system was tested in a home with cooling and refrigeration during a hurricane in Florida.

Fact sheet providing information on building-scale and utility-scale battery storage for disaster resistance.