Yes.
> Can you give an example of some numbers?
Yes.
I have a total of 23 solar panels with a maximum output of just over 1 MWh/month. The system cost around 34,000 BRL which is around 6,850 USD at current rates. Its expected lifetime is 25 years and it broke even in about three and half years. Current energy prices in USD/kWh varies between 0.15 and 0.17. The panels have been operating for about five years now and capacity has been expanded once already. They have generated a total of around 45 MWh. In 2023 output maxed out in November at 1.072 MWh and bottomed out in June at 396 kWh. The highest output ever recorded was 1.136 MWh in January 2021.
I have no batteries. In Brazil there's no way to go 100% off the grid so I decided against the added maintenance complexity of batteries. Energy is injected directly into the grid in exchange for "kWh credits" which expire in one year if unused. I suppose their aim was to incentivize people to produce as much energy as they consume since it makes no financial sense accumulate surplus credits by producing more. I've considered expanding production capacity anyway and just converting the excess energy into cryptocurrency. They refuse to pay me so I'll just sink any surplus into miners instead of giving it to them for free. Haven't gotten around to actually doing it though.