@Marie8425
For what it's worth, and since you're in a sunny location, I'd strongly recommend starting to invest in solar power to supplement your grid power. You can start small and add-on as funds allow.
Nowadays, you can buy 5kw inverter/chargers for under 500$ that automatically use solar power when available, and use the grid when not.
They can accept power from up to ten 500w panels each (which should cost 100$ or less each). That's enough to power your aircon all day, and with 2 units, you could power everything with the sun, and not use one watt of grid power. And they're easy to install - for someone with a bit of technical knowledge.
The main issue is where to install the panels, and if you don't have ground space, it has to go on the roof, and installers who do this aren't cheap. We were lucky and have plenty of land, so our solar panel array is ground based, which is much less expensive to set up, and easier to service, if necessary.
The other issue is when the sun goes down. Then you need batteries to avoid using grid power (and they're expensive). But at night, the aircon uses a lot less power anyway.
The morale of the story is that for just a few thousand, you can cut your $400 electricity bills in half at least. Later you can add batteries and achieve the same savings at night.
That's what we've done. Started small, scaled up over time. Today, we don't even have grid power. Everything is powered by the sun. Heating cooling, pool, water, appliances. We don't pay one penny in electrical bills. Overall investment over time was about 10000 euros (about $12000), but it was paid for over about 3 years of investing bits of income from the villa.
It's worth considering.
