Solar Array Oversizing - All the Benefits and Considerations

Shocking value given for free. so well explained. Gary deserves 20X more subscribers.

Why is this the first time I hear about the interesting DC and AC battery setup, and of the oversizing of panels? Sounds kinda smart to be honest.

We recently installed 31kWp of panels for a house which only had a single phase supply and therefore a limit of 17kW could be connected to the grid, but we were able to use 17kW of SolarEdge inverters and oversize, works really well!

Thank you so much Gary. I have only just discovered your channel with this video. I installed a 5kw array with 5kw inverter a few years ago. My needs have changed dramatically since then. I now have an EV and battery and combined with a pool pump and upcoming heat pump install my system can no longer cope. I’ve been trying to find an inexpensive fix and your video has been a God send. I did not know this was a thing. Oversizing!!!! Wow. I’m a man on a mission now. Many thanks again. I’m now an avid fan and subscriber. So many more of your videos need watching.

WOW I cant beliive this video has come out today, my system has come online today and my installer recommend a 6KW inverter for my 8.1 kw total panels and 10.5 kW battery system and this video has proved him right.

great easy video! another positive thing with oversize array is reaching faster the minimum input voltage of the invertor so that helps getting more solarhours usefull

Well done! The only thing I think you missed was that oversizing the array also changes the shape of the curve (same orientation) by allowing more production earlier and later in the day, as well as in cloudy conditions. Basically it will produce more earlier and later, adding to total output or area under the curve...

I’m planning my own system, and currently working on sizing based on the system input, and panel configuration.
I had come to the same conclusion to over-provision on the PV side, and this video further confirms this industry standard practice.
I’ve been playing around with a single 100W and 400W panel as a proof of concept, and I’ve personally seen examples of everything you’ve described. Thanks!

Found this excellent channel today. Going to be 8k inv 12k solar ratio in a month. All my upgrades this month are engineered for winter production, 2x 2790w to 3255w, and a new 3300 array PV2 remains at 2790w. As a whole 8370w to 12600w, the 2790's have peaked at 3514w (vertical bifacial) with this set up I expect the 3300 will max at 4000. Overcast winter estimate 3200 watts total and should give me the 14.6 kw I use daily. I dealt with 105 days of overcast and fog. November 2023, 4 hours direct sun for the month, December was 8hrs and January at 13 hours, 3 months 25 hours of direct sun. My inverter was silent for months. In heavy overcast pv2 a 2790 array produces a minimum of 580 watts. Bi facial panels are mini black holes.

This is a GREAT information! Thanks for posting. 😃

Nice one Gary, your videos keep just getting better. And now great T-shirts too!

Thank you Gary , your videos have helped me out so much.

Very helpful and detailed in an easy to understand way , many thanks.

Very informative. Thank you for your video!

First time I see one of your videos. Congratulations for such a clear and great video. I subscribed right away!

Very informative, thank you.

Fantastic explanation 👏👏👏👏👏

This is a great video. You explain things so well, and the graphics are excellent. Thank you so much.

Thanks Gary, I must admit I thought i knew what you were going to say and I got some of it right, but you made many more points than I expected.. Excellent video content and delivery.

Learned some new things about solar energy. Thanks!