Did you know that coal is still being used to generate much of your electricity? APS has two coal plants (Four Corners Power Plant, near Farmington, New Mexico, and Cholla Power Plant, west of Holbrook, Arizona) and is required to file annual Toxic Release reports as part of EPA's Community Right-To-Know program. Toxins are measured in thousands of pounds per year, some of which are released to water.APS is supporting the adoption of clean, renewable energy sources in Arizona by offering interconnection agreements to customers (residential and commercial) who install qualified solar systems, such as photovoltaic solar systems. Photovoltaic is the phenomenon of converting light to electric power. Photo = light, Volt = electricity. Photovoltaic devices generate electricity directly from sunlight via an electronic process that occurs naturally in certain types of material. Electrons in certain types of crystals are freed by solar energy and can be induced to travel through an electrical circuit, powering any type of electronic device or load. PV devices can be used to power small devices (e.g., road signs and calculators), homes, or even large stores or businesses. Several incentives are in place to encourage consumers to invest in renewable energy sources.