Frequently Asked Questions

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Solar panels contain photovoltaic cells that convert sunlight into electricity through the photovoltaic effect. When sunlight hits these cells, they generate a flow of electrons, creating direct current (DC) electricity. 

The value of solar panels depends on factors such as location, energy usage, available incentives, and the cost of electricity. In many regions, solar panels can provide a good return on investment over time through energy savings and potential incentives. 

Most solar panels come with warranties ranging from 20 to 25 years, but they can continue to generate electricity for 30 years or more with proper maintenance. Their degradation rate is typically low, often around 0.5% to 1% per year. 

The size of a solar system needed for a home depends on factors such as energy consumption, roof space, orientation, shading, and local weather conditions. A solar installer can assess these factors and recommend an appropriately sized system. 

Solar panels can still generate electricity on cloudy days, although their output will be reduced compared to sunny days. However, even in overcast conditions, solar panels can still contribute to energy production. 

Solar panels require minimal maintenance. Periodic cleaning to remove dirt, dust, and debris can help maximize their efficiency. Additionally, it's important to ensure that the mounting system remains secure and that there are no obstructions blocking sunlight. 

Solar panels alone cannot provide power during a grid outage unless they are paired with battery storage or a backup generator. However, with the addition of battery storage, solar energy can be stored and used to power critical loads during outages. 

Many governments offer incentives, such as tax credits, rebates, and net metering programs, to encourage the adoption of solar energy. These incentives can vary by location and may change over time. 

Net metering is a billing arrangement that allows solar system owners to receive credit for excess electricity they generate and send back to the grid. This credit can offset electricity purchased from the grid when solar production is insufficient. 

While it's possible for some individuals to install solar panels themselves, it's generally recommended to hire a professional solar installer. They have the expertise to ensure the system is properly designed, permitted, and installed for optimal performance and safety.