New generator technology product

udidwht wrote:
I was given thought of a replacement for a gas generator....

1. Silent operation
2. No gas to burn
3. Lasts several days (one I linked)
4. Recharges via solar panel/s attached to roof or perhaps portable panels.
5. Low maintenance

Yes cost is a factor but so is replacing a gas generator such as an Onan 4K.

What are you trying to accomplish?

If you have modest energy usage, there are plenty of solar/battery/inverter systems available or it's not that hard to put one together yourself. And that's fine if that's all you need. You can do several days. Heck, a lot of people do several days with good old fashioned lead acid golf cart batteries.

If you have more substantial power needs...such as running the air/con, that's when people typically jump up to a generator. These systems won't compare well to an actual generator. If you need air/con, Let's say under modest conditions, it may have a 50% duty cycle and draw an average of 1.2kw. The 12kwh battery bank will last you about 20hr (not several days). Actually less as you don't want to run them down to 0%, so probably more like 16-18hr.

If it's hot and the air/con runs continuously, figure maybe half that. This assumes no other electrical loads.

If you want to replace say 10kwh in a day, you are going to need around 2500w (nominal rating) of solar panels. (To estimate kwh production, around 4 times the nominal rating gives you a baseline for what you can expect.) That's a lot of panels.

Plus SI batteries are larger and weigh more per kwh of storage compared to lithium. A key consideration on an RV.

Unfortunately the advertisement/article doesn't provide much of anything in terms of specifications but it sure doesn't look like a great option.