In Europe, there are times when wholesale electricity prices are negative.
Storage & interconnects to other countries help, but still those negative prices exist. Some domestic customers get paid to use electricity. Good time to charge cars, do washing & drying and charge storage batteries, but some (even if only a few people) deliberately put on ovens etc that aren't being used productively.
What you've said is partly "stop digging". The rewilding part (eg Scottish rainforest recreation/extension) is a useful - maybe slow part of "start filling".
If we take what Tony Seba has said at face value, the cheapest renewables need storage and 3-5 times the renewables (wind, solar, hydro) comapred to typical or peak load. Most of the time they might produce 80-200% of momentary needs (figures just for argument). Anything above 100% goes to storage. When storage is full - electricity is then free and available for tasks which would otherwise be uneconomic.
If your argument revolves around greenwashing via fossil fuel companies promising to pump CO2 down wells and getting money for it - I'd agree. I don't think any of those will be winning X prizes.
I'm not going to go through all of the top 20, but
Lithos Carbon | Permanent Carbon Capture on Farms plans to add crushed basalt to farmland for better crops and removal of carbon
Lithos Carbon | Permanent Carbon Capture on Farms
Arguably, it might speed up rewilding efforts too, becoming a multiplier to rewilding and getting plants to a larger size, more resilient phase of growth and maturity. many rewilding sites have had their nutrients removed due to intensive overuse, beaver killing and floods. Adding a bit of basalt dust by drone speeds up natural weathering of rocks by many times due to huge increase in surface area.