Did you do any research whether people are willing to have energy contracts based on spot prices and requiring people to live along how the wind blows and the sun shines?
Which part about the automated control you failed to understand?

It makes no sense to time your coffee making or dishwashing for cheap prices, that's real penny pitching. But you can automate the large loads which are not sensitive to exact timing. If you have those, not everyone do of course. Probably the only reason you don't
grok this is because you don't, but it's blatantly obvious to those who do.
Hence, any consumer solution that is based on spot prices will only serve a niche market
This "niche" is actually pretty big as people are understanding more and more that the average price of the spot contract is less than a fixed contract (yes, we researched, and this is the one thing we expected to have to explain, but people have actually seen enough and found it out themselves already), and if you have
any controllability to your patterns, it's significantly cheaper.
This is always true in the long run, due to simple laws of economics - the spot price is the true price of the energy, and no one is going to leave the money on the table and sell for less than the market value. Never happened in the human history, for any product, in the long run (communist states that tried something similar, failed). There are periods of times when fixed contracts are cheaper for a while, and people get scared and get rid of their spot price contracts, but then they regret it a few months later when the opposite, and usually larger spike happens.
Currently we are having a large group of people who panicked last year and signed into 0.40e/kWh (!!!!!) fixed contracts
for freaking two years during which you cannot terminate the contract, yet the spot price average so far, this winter, which was
supposed to be
the crisis winter and the sole reason why people panicked and changed their contracts, is... just 0.10e/kWh.
After 2 years, their mistake has cost them something like 10000 EUR and misery having to change their living habits, reduce the room temperature and take cold showers just to save energy because it's so freaking expensive. They will happily take 0.05e/kWh average price spot energy from then on. Their panic choice cost them exactly what they were trying to avoid.