The cost of a solar panel system is largely dependent on several factors, including the size of the system. As a general rule, the larger the system, the more expensive it will be. On the other hand, the bigger the system, the less energy it will produce. But buying in bulk can reduce the per-watt cost.

Roof Characteristics Are A Factor.

A solar panel costs more when it is installed on a roof with a steep slope. This is because solar panels are attached to the roof framing using mechanical fasteners, which involve drilling multiple holes into the roofing system. These holes are then sealed to prevent water leakage. However, the quality of the seal depends on the quality of the installation and the exposure of the sealant material to various environmental factors. Also, the seal may break over time due to vibration or thermal expansion/contraction cycles.

Moreover, the roof’s characteristics are another factor in solar panel cost. For example, a roof made of slate or wood does not lend itself well to solar installations. These materials are also brittle and can be dangerous for installers.

Ground-Mounted Solar Panels Cost 

The initial cost of ground-mounted solar panels is higher than that of roof-mounted solar panels, but the savings of free electricity can offset this. The savings will depend on the electricity used and whether you can take advantage of tax incentives. However, you will typically see a return on investment in the first year. Incentives vary from state to state, but most states offer a tax credit to homeowners who install solar power. Tax-paying homeowners can also sell their excess power back to their utility. Moreover, solar power can save you money by reducing your monthly electricity bill, so that solar panels can be a smart investment.

Brand Of Panel

Choosing the best solar components is important when planning a home improvement project. Some people are brand conscious and interested in solar panels with recognizable brand names. Other homeowners are interested in knowing the pros and cons of various brands before they make a purchase. In any case, you should be aware of the pros and cons of different brands of solar panels before making your final decision.

Price Per Watt

When evaluating the costs of installing solar panels, the price per watt of solar panels is an important factor. However, the price per watt varies significantly from country to country and even state to state. 

According to the National Renewable Energy Laboratory, a residential solar panel system will cost approximately $15,000 to $25,000, or about $0.70 to $1.50 per watt. This price does not include the cost of batteries. Moreover, most distributors only sell their products to local contractors and homeowners at bulk prices, which results in lower costs overall. However, you’ll still have to pay for installation fees and other components, including batteries, inverters, mounting hardware, and wiring.

Financing Options

Although the initial cost of solar panels may seem high, various financing options exist. The federal solar tax credit is one way to reduce the cost of solar panels. Another option is to apply for a solar loan with a low-interest rate. A solar loan can save you 40 percent to 70 percent over the life of the panels.