That’s why Denmark and Germany, two EU countries with highest % wind, have the highest electricity cost in Europe. Math checks out.
British Columbia gets 99% of its energy from renewables. It's electricity price decreased in 2022.
99 % is impossible. Storage systems to achieve 99 % don't exist yet.
The link to the Electrify book in my original comment shows how to get to 100% green electricity. It's possible. Not easy nor cheap, but possible. It uses existing nuclear because that's cheap and rational. It doesn't include building more nuclear, though because that would add trillions to the cost.
Let's take good foo. Foo has three producers, A can make them for $1/unit, B for $2/unit and C for $3/unit. If A can satisfy demand then the price will be $1 and B&C won't make or sell anything. If A&B can satisfy demand then the price will be $2. But if A, B & C are required to meet demand the price will be $3 while A&B will be rolling in the profit.
Therefore the fact that the price of electricity is going up commensurate with fossil fuel prices is good evidence that fossil fuel electricity is the most expensive source.