Storage isn't yet realistic for whole-day fluctuations. Current capital costs are about $200/kWh. Daily global energy use is about 400 TWh. That would be an 80000 trillion dollar battery.
That number is so outrageous it's basically infinite. Even if the whole world focused on building a battery to supply a single country for a single day we'd run out of materials and land (batteries aren't small).
The only hope for energy storage is 100000x cost reductions.
That number is so outrageous it's basically infinite. Even if the whole world focused on building a battery to supply a single country for a single day we'd run out of materials and land (batteries aren't small).
The only hope for energy storage is 100000x cost reductions.