Installing a 5 kW solar panel system on your Wellington home can cost about $10,605 after tax incentives. Solar panel systems are measured by kW production, and the average system costs about $3,026 per kW of installed capacity. For Wellington, you can use $3. 03 per watt to determine the price of a larger system (system size x price per watt x 0. 7 to account for tax incentives). High Power Bills? How much do solar panels cost. . Let's take a look at the average cost of solar in Wellington. 4 kilowatts, meaning a cost of about $12,093 for a solar installation, or $17,293 before the 0 federal solar tax. . A 5 kW solar panel system is enough to power a small home—but it'll cost you about $13,550. Why trust EnergySage? As subject matter experts, we provide only objective information. We design every article to provide you with deeply-researched, factual, useful information so that you can make. . We use Google Earth imagery to analyze your roof shape and local weather patterns to create a personalized solar plan. Adjust your electric bill to fine-tune your savings estimate and the recommended number of solar panels for your home. Compare loan, lease, and purchase options for your solar. . Our 5 kW solar systems feature DIY solar kits which will produce at least 5kW (or 5,000 watts) of power. This translates to approximately 10 to 20 kilowatt-hours (kWh) per day, depending on your location and other factors. Choose from a selection of 5kW solar kits with string inverters. . The City of Wellington is set to make significant strides in renewable energy by launching a new solar array in collaboration with KPP Energy. As part of its ongoing efforts to diversify its energy resources, the city has received a shipment of solar panels and is preparing to begin construction. .