Given a solar panel system size of 5 kilowatts kw an average solar installation in washington ranges in cost from 11 688 to 15 812 with the average gross price for solar in washington coming in at 13 750.
Adding more solar panels wa.
Some states yield higher solar premiums than others and washington is one of the top five states to do so.
Add on projects are a bit easier if your original solar panel system uses microinverters as opposed to a power optimizer or string inverter system.
Furthermore additions often provide additional roof space for mounting another solar rack.
3 get a whole new separate solar system installed next to the original.
Since string inverters have an average lifespan of 10 years try to coincide the installation of your extra panels with replacing your inverter to save money.
After accounting for the 26 federal investment tax credit itc and other state and local solar incentives the net price you ll pay for solar can fall by thousands of dollars.
Bonus for modules solar panels made in wa.
Because microinverters are located at each individual panel you don t have to worry about inverter capacity issues and can just install additional.
Add together the wattage of the two solar panels.
As they re accurately sized to the solar installation adding more panels will probably exceed the amount of electricity your inverter can process.
You d like to take advantage of solar renewable energy credits.
Adding more solar panels can minimize the financial sting of your home expansion.
You are probably weighing up 3 alternative approaches to your solar upgrade.
And the more solar panels you have the more you ll save on your energy bill.
2 get a new bigger inverter and add more panels too.
Your charge controller has to be able to handle at least 10 more than this.
If you re adding quite a few panels and your entire solar panel system is much larger than the original size it may generate more electricity than your pre existing inverter can handle.
If your municipality offers a solar renewable energy credit srec marketplace you have the option of selling your excess electricity back to the grid.
A site specific quoteis always the most accurate means of determining this though.
Washington state solar incentives 2020 when installing solar panels in washington homeowners are eligible to get 26 the cost of installing solar back in taxes using a federal solar tax credit while paying no local or state sales tax effective july 1st 2019.
If your existing solar panel is 100 watts and you want to add a 50 watt solar panel you will need a charge controller that can handle 150 watts plus 10.
As of september 2020 the average solar panel cost in washington is 2 75 w.