2,527 karma · joined April 29, 2014
It turns out these enable a very high specific-power PV cell that adds another even more attractive production curve behind what is happening in vertical bi-facials. See e.g.:
https://ee.stanford.edu/frederick-nitta-koosha-nassiri-nazif...
Source: I work on 100% Si anode batteries constructed in part with a litho-derived laser process at Enovix.
Sneak peek of the production process: https://www.youtube.com/watch?v=LYZZa39nvDM
Amazing.
https://enphase.com/ev-chargers/bidirectional
There are other products already available to do it (DCBel), and it can be hacked of course, but at the current moment everything comes with substantial corner case blind spots, mostly related to grid-forming/following switching and to the resilience of the power electronics.
Why don't you interpret it from the perspective of companies (which need to buy energy to do stuff) and consumers (who need to buy energy to be comfortable)? These are the actual buyers.
Then you'll see why solar and batteries win all, and utilities, with their badly potholed power highways with massive tolls to consumers, slowly reduce in importance.
https://www.theinformation.com/articles/the-electric-a-start...
By your definition, solar was vaporware in 2001 because less than 1 gigawatt per year was built. But it wasn't. It was simply early in its lifecycle. Today, 1 gigawatt of solar is installed in the world every day. Next year China will likely reach 1 TW of annual solar production capacity.
This is perhaps why software people shouldn't throw around the word "vaporware" –- a useful software-industry term –– in hardware-based industries with well developed and well understood generational patterns.
1 GW per day of new solar is being installed globally. Where do you think the excess mid-day production is going to go? It doesn't have to go anywhere, actually. But it will go somewhere.
The fight here is over whether natural gas-made hydrogen (SMR) is an interesting fuel at all. I think the numbers say no, while solar-made hydrogen is in fact extremely interesting.
However, it is a critical large-scale industrial input, a replacement industrial input for several additional large industries, and an excellent large-scale stationary energy store.