Monday, March 9th, 2015
We’ve always considered efficiency — a measure of how much of the sun’s energy is converted to electricity — to be the most important aspect of solar cell performance. In fact, Alta Devices is founded on the basic principle that very high efficiency solar cells are the single most important lever in reducing the overall cost of solar electricity. This is because most of the costs of a solar power plant, including the modules, the land, labor, hardware and wiring are directly proportional to the physical size of the plant. Given this large fixed cost, increasing the amount of energy generated per unit area decreases the cost of the electricity produced. Simply put, higher efficiency solar cells deliver more energy per unit area, dividing down the costs associated with the power plant and resulting in lower cost electricity.