Rooftop Solar FAQs
You may have been hearing more about rooftop solar for homes and businesses lately. The frequently asked questions section will help answer some of the more common questions we receive at Grant PUD regarding these programs.
Grant PUD has a neutral stance on home solar installs. We encourage customers to go into your solar investment fully educated, with clear expectations. Be careful when speaking to solar company salespeople as some of their claims may be untrue for our area.
Yes, every Kilowatt hour(kWh) of energy you generate from solar lowers your bill by that amount.
A typical 10-Kilowatt (KW) system in our area generates around 12,000 kWh for the year. Averaged at 1,000 kWh a month, this would lower the bill by 1,000 X $0.04547, or $45.47, on average each month. $0.04547 is the kWh charge by Grant PUD as of May 1, 2022.
No. Grant PUD has a $20 minimum charge each month, even if you use no energy that month. We do not purchase customers' excess solar generation.
Upon signed agreement and application approval, Grant PUD will install a Net Meter in place of the existing meter. This Net Meter will record the energy Grant PUD provides to you and will also record the energy you provide to Grant PUD. Excess energy you provide to Grant PUD is subtracted from the energy Grant PUD provides to you and you are billed on the difference.
If you provide Grant PUD more energy than you use for the billing period, you are billed the minimum charge and any excess energy is “banked” for you for future use. Banked amounts can carry forward month to month but not year to year. Per State Law, this banked amount is eliminated March 31 of each year.
Yes. As of May 1, 2022, the kWh rate charged is $0.04547. Twenty years ago, the rate was $0.03293 per kWh.
Solar panels and other solar equipment has continued to improve, but solar panels still have degradation (lower performance) each year. The financial effect is not exactly the same, but similar to a rate increase.
If you are thinking about installing solar, we encourage you to look at the energy you have used in the past twelve months and get a quote for a system close to 90% of that load.
While not the same every year or for every system, a typical system in our area puts out around 1,200 kWh for each 1 KW.
Example: if your twelve-month usage equals 15,000, a system size would be calculated as (15,000 X 90% = 13,500. 13,500/1,200 kWh = 11.25 KW). Since roof slope and direction to south is different on each home (or business), please consult with the installer(s) about the proper size of your system.
Depending on rate increases and numerous weather factors the above noted system could be expected to save you around $12,000 worth of kWh’s over a twenty year period.
How Net Metering Works
Renewable energy is generated for use at the home.
An inverter converts the renewable energy into electricity used within the home.
A production meter installed at the home measures the amount of energy created by your generator.
Any excess energy generated is sent to the grid. The same amount of energy is later returned to you at no cost.