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Frequently asked questions
Soltra welcomes you to discover authentic solar energy, offering innovative solutions to power, save, and live your best.
Solar radiation is electromagnetic energy composed of visible light, ultraviolet (UV), and infrared (IR) rays from the sun that reach Earth’s surface.
The photovoltaic effect is the process where silicon converts light energy (photons) into electric current, forming the basis of solar panels.
Solar costs vary by size, location, and installer. In 2025, expect to pay $15,000 to $25,000 for a 6–8 kW system before incentives.
Solar energy is renewable and inexhaustible. The sun will shine for about 5 billion more years, providing a vast clean energy source.
