2015 range of residential solar installed cost per watt
The average residential household in the southwest installs a 5 kWh system and during Q1 2015, it cost about $3.40 per DC watt or $17,000 (5000 times $3.40) before incentives. Utilities on the other hand typically install systems in the 100 mega-watt or greater range.ssuming an average 2015 residential electricity price in AZ of $.125 per kWh (excluding taxes and fees) yields a yearly savings of $1,006.25 (8,050 x $.125 not counting future inflation). The monthly savings would then be $83.85 ($1,006.25 divided by 12). So what is the current cost of residential solar power? As of early 2015, it’s approximately $3.00 per installed watt. The average sized solar panel system is 5,000 watts, so this brings the total cost to $15,000. That 15k figure is just an average amount.he large solar leasing companies are still charging $5.00 to $6.00 per installed watt or more, but their customers only see the lease payment. They simply have too much overhead, advertising costs, and investors seeking a good return on investment to offer a fair price on solar power. As of early 2015, it’s approximately $3.00 per installed watt. The average sized solar panel system is 5,000 watts, so this brings the total cost to $15,000.That 15k figure is just an average amount.he large solar leasing companies are still charging $5.00 to $6.00 per installed watt or more, but their customers only see the lease payment. They simply have too much overhead, advertising costs, and investors seeking a good return on investment to offer a fair price on solar power. In addition, costs for fossil fuels may creep up due to raw material costs, shipping costs, and possibly carbon dioxide taxes. At an installed price of $1.25 per watt, the cost of PV solar is always cheaper than coal. At $2 per watt, it is cheaper after year 40.At $3.00 per watt, it is cheaper about year 80.ssuming an average 2015 residential electricity price in AZ of $.125 per kWh (excluding taxes and fees) yields a yearly savings of $1,006.25 (8,050 x $.125 not counting future inflation). The monthly savings would then be $83.85 ($1,006.25 divided by 12). Generally, Solar PV systems that generate electricity from sunlight cost between $2.50 to $7 per installed watt. Typically, the larger the system, the lower price per watt.Large commercial systems are typically well below $4 per watt.Residential systems, because of their smaller size are usually somewhat higher. For example, in Ohio a 5 kW residential system with an average monthly production of about 530 kWh would cost approximately $19,000 or about $3.77 per watt.Larger systems have a significantly lower cost per watt.esidential systems, because of their smaller size are usually somewhat higher. For example, in Ohio a 5 kW residential system with an average monthly production of about 530 kWh would cost approximately $19,000 or about $3.77 per watt. Larger systems have a significantly lower cost per watt. The chart at the left shows the average cost of electricity for 2014 by consumer group per the EIA (the US Energy Information Administration). For 2014 the average residential cost was 12.50 cents per kilo-watt hour up 3.1% from 2013. Commercial was 10.75 cents and industrial 7.01 cents.ssuming an average 2015 residential electricity price in AZ of $.125 per kWh (excluding taxes and fees) yields a yearly savings of $1,006.25 (8,050 x $.125 not counting future inflation). The monthly savings would then be $83.85 ($1,006.25 divided by 12). Within residential and commercial markets, PV system prices have declined by about $0.5 per watt (/W) (6 to 8 percent) per year, on average, since 1998. Figure 1. Installed Price of Residential and Commercial PV Over Time.ithin residential and commercial markets, PV system prices have declined by about $0.5 per watt (/W) (6 to 8 percent) per year, on average, since 1998. Figure 1. Installed Price of Residential and Commercial PV Over Time. Installed prices for residential and small non-residential systems completed in 2014 were $0.40-per-watt (W) lower, and prices for large non-residential systems were $0.70/W lower, than in the prior year.mong residential systems installed in 2014, for example, 20 percent sold for less than $3.50/W, while another 20 percent sold for more than $5.30/W. Installed prices for PV systems in 2012 fell by a range of roughly $0.30 per Watt (W) to $0.90/W, or 6 to 14 percent, from the prior year, depending on the size of the system.nstalled prices for PV systems in 2012 fell by a range of roughly $0.30 per Watt (W) to $0.90/W, or 6 to 14 percent, from the prior year, depending on the size of the system. Within the first six months of 2015, installed prices within a number of large state markets fell by an additional $0.20 to $0.50/W, or 6 to 13 percent, maintaining the steady pace of solar price declines in recent years.mong residential systems installed in 2014, for example, 20 percent sold for less than $3.50/W, while another 20 percent sold for more than $5.30/W.
$3.00 per watt