Solar panel costs
While there are many benefits to be gained from switching to solar energy, no discussion of the transition would be complete without considering cost barriers. Solar panel prices vary widely and depend on many factors. What matters most is the length of time in which they break even.
The break-even point for most residential solar systems is between three and ten years. Solar systems typically cost between $0.75 and $1.50 per watt , or $6,600 to $11,400 for an average 6 kWh system. After incentives, the average price drops from $4,600 to $8,000.
When selecting solar panels that meet your home's needs and specifications, also consider the cost of the products you are considering in your solar power decision.
Solar module efficiency
Solar module efficiency is expressed as a percentage. The current industry average is about 18%. Highly efficient solar cells can achieve efficiencies of more than 22%, while energy-efficient products have efficiencies of around 16%. But that's only part of the equation.
Long-term solar panel efficiency ratings measure the rate of panel degradation over time. Cheap solar modules fail more quickly and more severely than high-quality but more expensive solar modules.
Another factor, especially for those living in hot climates, is the panel temperature coefficient. The rating measures the efficiency of energy loss due to temperature increases and is expressed as a negative percentage. A lower temperature coefficient means the solar cell will perform better in hot weather than cells with a higher temperature coefficient.
Temperature coefficient
The panel coefficient measures the loss of efficiency with increasing temperature and is expressed as a negative percentage. A lower temperature coefficient means the solar cell will perform better in hot weather than cells with a higher temperature coefficient. While low ratio panels are important in hot locations, they can also provide visible results in locations experiencing large temperature swings.
Your home's electrical needs
Depending on your household's energy consumption, you may need a system that produces more or less electricity. Make sure your system produces enough power during the day and, if desired, stores enough energy to get you through the night. Some solar power users choose systems that are large enough to produce enough electricity to meet their needs, while others choose systems that allow them to live off the grid or even sell electricity to local utility companies.
Check the solar panel warranty
The solar module warranty is 25 years. System components such as batteries, inverters, and other critical components often have warranties that vary widely depending on the product and manufacturer. Pay attention to these warranties and the 10- and 25-year panel performance guarantees, especially if you plan to live in the same home for a long time. Look for performance guarantees and manufacturer warranties.
Availability of installation company
In addition to availability where you live, make sure the installation company you choose offers the panels and system components you need or their equivalent. Check reviews, references and quotes when choosing a company that can meet your solar energy needs. In addition to the manufacturer's warranty, pay attention to the installer's labor warranty.
Rooftop area available
An important factor that can limit the choice of panels is the placement of the roof or terrace space in the optimal direction. Smaller spaces benefit from fewer panels with lower performance and efficiency, while homeowners with a larger footprint can benefit from more panels and energy options.
Check out solar panel reviews
There used to be a lot of solar customers, but as solar energy has become more popular and consumers have had a few years to evaluate their systems, things have changed. There are online reviews of solar panels, installers, systems, storage, and other components so you can find a product or service with good reviews.
Solar panel installation recommendations
Solar energy systems are constantly being developed and improved. When making purchasing decisions, ask those who have mastered the system what they have learned. Also be open to recommendations from solar companies for your energy needs. In an ever-evolving industry, there is always new information that can be useful.
