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2. Installation Costs The total cost of a solar energy system includes not only the price of the panels but also the cost of installation. Factors such as labor, permits, and specific site requirements can drive up these expenses. On average, installation costs can account for 10% to 20% of the total price of the solar system.

1. Size and Weight A typical 250-watt solar panel measures approximately 65 inches by 39 inches and weighs around 40 pounds. This makes it relatively easy to handle and install, allowing for flexibility in various setups, whether on rooftops, ground mounts, or portable solar kits.

1. System Size The size of the solar panel system is one of the most significant factors in determining the estimate. A larger system will naturally cost more due to the increased number of panels required. Homeowners need to assess their energy needs to determine the appropriate system size. A good estimate usually considers the existing electricity usage and future needs, especially in cases of family expansion or electric vehicle purchases.