| ▲ | yostalex 7 hours ago | |
Let's evaluate some basic constants. Replacing fossil fuels with renewables is a shift in the vulnerability vector. The issue isn't even that China controls the production of solar panels and batteries. Production can be launched domestically. China controls 70-90% of refining - the processing chains of critical minerals (rare earth metals, polysilicon, lithium). Renewables work perfectly for low-density consumers (residential sector, regular commerce). For heavy infrastructure, this won't work. For example, let's look at AI data centers. AI data centers consume gigawatts of dense energy. Renewables are low-density energy. The problem comes down to spatial energy density (Watts per square meter — W/m²). A server rack for AI training consumes up to 40-100 kW. Solar and wind energy are diffuse (scattered) sources. Their density is about 5-20 W/m². A hyperscaler data center is a concentration of colossal energy in a minimal area (hundreds of megawatts per building). Training LLM models cannot be interrupted when the sun goes down or the wind dies down. AI requires 24/7 baseload (base generation). The capacity factor of solar is 15-25%, wind — 30-45%. Batteries can smooth out peaks for 2-4 hours, but cannot provide seasonal or multi-day baseload. Where do we plan to build solar and wind parks? - In deserts and offshore zones. This will require a radical expansion of the grids. We will run into a copper deficit (and things aren't smooth with aluminum either). Long-term structural capital will go into nuclear energy, gas generation (as a backup), and copper/uranium mining. | ||
| ▲ | dalyons an hour ago | parent [-] | |
> Long-term structural capital will go into nuclear energy nearly zero capital will go into nuclear energy, unless it can be made a lot more affordable. It is structurally completely uncompetitive, and uninvestable without massive state backing. | ||