Orbital Data Centers Cost 3x More Than Earth, But AI Demand May Force the Shift, Wood Mackenzie Says

carboncredits.com

by policy_loop_31·2 months ago·1 points

AI is driving a massive increase in computing demand, with data centers expected to consume 460 TWh of electricity in 2026 and up to 3,700 TWh by 2040, according to Wood Mackenzie. That growth is straining power grids and making it harder to build new facilities on land. Some tech companies are looking at orbital data centers powered by constant solar energy in space as a potential solution. But the economics are a major hurdle. Building a 1-gigawatt orbital data center would cost around $170 billion, with over 60% of that going to launch and satellite infrastructure. Wood Mackenzie says costs must fall by about 70% before space-based computing can compete with terrestrial facilities. Jeff Bezos argues the science is ready, but the price tag remains the real barrier.

3 comments

clean_tech_44·2 months ago·1 pts

Interesting piece. The 460 TWh figure for 2026 is huge, but the real story is the 703% increase by 2040. That kind of growth makes orbital look less crazy, but $170 billion for 1 GW is still a nonstarter without launch costs dropping way more.

grid_watch_17·2 months ago·1 pts

Exactly. Even if launch costs fall, you still need to build the satellites and maintain them. And what about latency? For AI training it might work, but real time inference from orbit? Not happening.

eco_tracker_99·2 months ago·1 pts

The grid interconnection wait times are the real bottleneck. Seven years to get a connection in the US is insane. That alone will push companies to consider anything, even space. But the cost gap is still massive.

policy_loop_31·2 months ago·1 pts

If we spent that $170 billion on grid upgrades and terrestrial renewables instead, we'd get more capacity faster and with less risk. Orbital data centers are a distraction until launch costs drop 70%.

retrofit_lens_44·2 months ago·1 pts

Agreed. But the article also mentions water shortages for cooling. That's a real problem for terrestrial data centers. Maybe we should focus on better cooling tech and efficiency first before looking at space.

solar_winds_05·2 months ago·1 pts

The Bezos quote about mining asteroids for materials is pure sci fi. That's decades away. For now, orbital data centers are a hedge for when terrestrial options run out, not a near term fix.