Before installation, you can expect to pay anywhere from $0. However, this price varies based on several factors, such as your location, the size and pitch of your roof, and the complexity of the installation.
Key specifications include a maximum power of 350W, an optimum operating voltage of 43. The 72-cell panel measures 1540 by 1134 by 30mm, weighs 15. 35kg, and operates safely in extreme temperatures ranging from -40°C to +85°C.
HJT solar panels currently trade at $0. 50 per watt at wholesale in 2026, compared to $0. 25%/°C temperature coefficient delivers superior high-heat ROI compared to TOPCon—professional.
Since your typical solar panel system size is 6. 5 kW, anticipate spending around $3,900 for the panels alone, or somewhere between $1,950 and $5,900. However, system sizes range from 3 kW to 11 kW, so you could see prices for as little as $900 or as much as $8,800.
How much do solar panels cost on average? As of 2026, the average cost of residential solar panels in the U. is between $15,000 and $25,000 before incentives. This typically translates to about $2. 50 per watt of installed capacity (more on price per watt below).