How Photovoltaic Solar Works

Photovoltaic solar is a technology that uses the unique properties of certain semiconductor  materials to directly convert sunlight into electricity. Photovoltaic solar systems use wafers, typically made of crystalline silicon, that are sensitive to sunlight and produce a small direct current when exposed to light. When these cells, also known as solar cells, are combined into larger arrangements called modules, they produce an appreciable amount of electrical power with no moving parts, noise or emissions. Electricity in the form of Direct Current (DC) is generated by each module.

At Day One Solar, we design an array of modules sized to meet your specific electric energy needs. We also install a device called an inverter which converts DC into AC (Alternating Current), the electricity standard used in your home or business. The system design also insures that you remain “grid-tied” – meaning that you have seamless access to your electric utility’s power grid for times of the day and night when your electricity usage exceeds your electricity generation. The photovoltaic solar panels have a lifetime of over 20 years which translates to a lower electric energy cost than that of traditional fossil fuel based power generation.

The earth receives approximately 170 million gigawatts* of power from the sun. This is a relatively tiny fraction of the sun’s total output, but is millions of times greater than the maximum power demands of Earth’s entire population. Adding solar panels to your roof or in a ground mounted array means harnessing this totally clean energy source in the form of your own power plant. The electricity you then generate is used right where you need it, and when you need it. It’s the single most significant action you can take to reduce your carbon footprint. The more photovoltaic solar systems we add, the fewer coal or oil fired power plants have to be built by utility companies in order to meet the ever growing demand for electric power. So solar is not only good for your bank account, but it’s also good for the planet. It’s a Win-Win!

Fun Fact: While French Physicist Edmund Becquerel is credited with discovering the photovoltaic effect in 1839, the first practical photovoltaic solar cell was invented by Bell Laboratories in 1954 for use as a power source for remote telephone service stations.

*One gigawatt = one billion watts

Smarter Energy, from Day One.