Buying your solar electric system outright is best.
Are solar panels expensive to buy.
Solar companies that purchase in bulk typically spend 0 75 per watt whereas homeowners spend 1 per watt.
Solar companies can typically get a single solar panel at a price of 0 75 per watt.
The price of solar has dropped by an incredible amount.
However if a homeowner is trying to buy one or two panels on their own for a small diy project they will likely pay closer to 1 per watt.
The cost has generally been following swanson s law which states that the price of solar drops by 20 for every doubling of shipped product.
On average installation and the system together can run between 15 000 and 25 000.
One 150 to 300 watt solar panel costs 112 to 450 on average or between 0 75 to 1 50 per watt depending on the type of panel energy efficiency rating and size.
Today it s around 0 13 per watt or about 600 times less.
Back in 1977 the price of solar photovoltaic cells was 77 for just one watt of power.
But the true cost of solar panels and whether they ll help you save money depends on a few key factors.
Although solar panels do get cheaper on a per watt basis as the system size gets bigger the overall cost of the system increases as well.