I am building a digital replacement of all universities in the world with full courses across any subject, in any language, tailored to your individual learning style all.

Not all of us agree that artists should charge for their products.

When there's too much energy available for the grid, and the price goes negative, producers are paying for someone to use that energy or paying another potential producer to reduce their output.

Some industrial users have variable demand, and a lower (or negative) price could encourage them to use more. A multi-region internet service might send more traffic to a datacenter with negative electricity prices, even if in increases latency for users.

Some producers need time to modulate output, and stopping and restarting can be expensive. Solar and Wind are at least technically easy to start/stop, but subsidies may make it economic to pay the grid to deliver electricity; either because of contracts/subsidies, or because the expense to deliver unwanted electricity is less than the expense to monitor pricing and reduce production.

Arc isn’t unique for it, but vertical tabs would be a boon for most “ordinary” people I know. When I look at others’ browser windows, they usually have so many tabs open, they can only see favicons, and sometimes not even that. Vertical tabs fixes that—but it’s a feature, not a product. If that kind of feature caught on, absolutely nothing would stop Chrome, Safari, Firefox, etc. from implementing it.

"pay to feed in the surplus"? In my U.S. context, this sounds surprising: are you saying that sometimes the energy utility CHARGES you money when you feed solar energy to the grid? That sounds... bizarre?

In my state electricity costs about $0.089/kWh. We spend about $100/mo on electricity total which comes out almost exactly to your 30kWh/day figure (with a $23.15 connection charge included).

Invested that 40k would conservatively cover over 2x our electricity bill without touching the principal (inflation adjusted).

That's a pretty hard sell for solar. Obviously incentives will improve things but it just seems less financially risky to use grid power.

Average US home power consumption: 30 KWh/day.

Assuming an average of 4 solar hours per day, you would need a solar system capacity of approximately 7.5 kW to 12.5 kW.

Individual solar panels produce 250-400 watts. So, conservatively, 50 panels. Installed, that's currently about $25,000, including inverter but not battery backup. Battery backup will cost maybe $15,000 more. So, the whole installation is about $40,000. This is with no grid connection, power sales, or incentives. Not too bad. Costs about the same as a car.

Median US house price is $412,300.