Its a 23-panel system producing 10.12kW. The panels are JA Solar 440w paired with Enphase IQ8M microconverters. We didnt get a whole home battery yet (I balked at the coin that would add), but probably next year. We're getting some quotes to replace the hot water heater with an electric one, and I'm not sure if I want to go tankless or not. Our HVAC room is huge so I'm not hurting for space, but I just think a tankless heater would be so cool.
Here's a pic of the panels - the installer has been very good to work with and they came out and cleaned up some of the issues that were present after install (mainly some issues with the skirt and the critter guards). For the array over the garage, they actually set it down a little lower and more toward the back of the garage, so its not exactly placed like when we spec'd it out. It should be 6 inches or so up and over to the right. I'm seeing what they will do regarding that, but its not getting any shadow from the other garage once the sun is at its highest point. This image below was from shortly after 7am today.
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Truly thx for sharing, Q’s:
“Critter guards”, like bats, squirrels, possibly raccoons even?
I’m in a loghome and had a huge bat issue around 2014, went thru 2 years of filling every seam to mitigate them.
Bats will find and roost lots of places.
No storage battery, understood.
Have you looked into EV cars and “battery sharing” with your system?
Your solar array feeds the EV, EV available to feed your home if needed.
Where you set parameters on how much EV discharge you’ll let it use (say stop at 80% , could vary based on schedules ).
Hot water tanks:
In my geothermal system I have 2 hot water tanks, both 80 gallons.
1st is a pre-heat tank that goes from 65deg f water (year round ground temp) to about 104deg f, “free” waste heat from geothermal pump, there’s a heat exchanger coil on it.
It’s actually a “solar storage tank” by design, nicely insulated.
There no electric heat coils in it, purely holding tank to step up the water temp as water circulates thru the heat exchanger on the geothermal pump.
Then 2nd is actually a Rheem air pump electric water heater, steps up to 125deg f.
Very efficient.
I installed everything you see, copper plumbing is “fun”, we have 1” hot and cold supply lines for whole home.
My father in 2015 went from gas to a Rheem air pump and saw decent savings.
My mother in law has gas on demand tankless system, meh soso imo.
Here’s a summary I made showing a traditional 50 gallon gas water heater at $284 per year, vs 50 gallon hybrid water heater at $198 per year and 80 gallon hybrid water heater at $149 per year.
Good for ROI studies.