...contrast, higher-income households can use discretionary income to purchase systems and technologies that avoid electricity consumption. Solar panels, green building designs, efficient air conditioners, new homes, and other energy-efficient items...

...it lacks local sources of traditional thermal fuels, Hawaii uses petroleum, which is easy to ship and store. Image Credits: Digital Genetics/Shutterstock.com; Meister Photos/Shutterstock.com; Yermolov/Shutterstock.com; ArTono/Shutterstock.com; John Kasawa/Shutterstock.com; Chris Howey/Shutterstock.com....