Can I afford photovoltaics (PV)?
That depends. Generally, PV energy costs are higher than those of energy bought from your local utility. However, if you need power in an area not served by a utility, PV may be the most cost-effective option. All over the world, PV system installations are increasing. As more people learn about this versatile, clean power option, this trend will continue, bringing costs down and affordability up. Most of us must consider our goals in light of our wants and needs when determining affordability. Availability is an important determinant, and it has a unique meaning for a PV system. This is because it depends not only on reliable equipment but on the level and consistency of sunshine, and the capabilities of the energy storage system, at your site. Because the weather is unpredictable, designing a PV system to be available at all times and conditions is expensive and often unnecessary. PV systems with long-term availabilities greater than 95% are routinely achieved at half the cost or les
