That's great! And you'll have to live at least until 91 to get your money's worth...Whoo Hoo!!! I'm sending electricity back through to grid to the power company once again!. Hopefully it will stay that way from now on. The guy told me that 10 years ago when my system was installed 'they' weren't using the heavy gauge wires for connectors that they use now-a-days. He found several panels that needed to be re-wired. So I said, "...this means that I'll keep having this problem until all the wiring has been updated?" He hopes not, but maybe so.
So I've made smaller night areas inside each tortoise shed, replaced the pig blankets with radiant heat panels and this winter I shouldn't use as much electricity as I used last winter. And my solar system is producing once again. Hopefully things are all good for a while now!
The inverter was guaranteed for 10 years and the panels usually last about 20 years, so my old inverter went out 4 months after the 10 year mark. The new inverter should last as long as my existing panels. Good grief, I'll be 91 in 10 years. You buy something like that and expect it will last forever. It never occurred to me I would be having to spend more money on it.