Why is solar so expensive? This article breaks down the factors contributing to the cost, from manufacturing and installation to soft costs and financing. Solar energy represents a powerful solution to our growing energy needs, offering a clean, renewable alternative to fossil fuels. The long-term. Purchase of solar panels, inverters, and related equipment is included. High-quality components are frequently more expensive at first. May improve performance and longevity. For proper system design and installation, skilled. Prices for residential and commercial solar systems have fallen by almost 70% since 2010 due to technological advances in efficiency and improved manufacturing processes. These costs come from different factors in making solar panels.