The Economics: Restart Math and the Cost of New Nuclear
Nuclear's problem was never physics. It was the balance sheet. A large reactor is a multi-billion-dollar bet that takes a decade to pay off and has a habit of running late, and late in capital-intensive projects means ruinous. The data-center era changes the financial picture in one specific way: it supplies a customer willing to sign a long, firm contract at a price that makes the numbers work, which is exactly the missing ingredient that killed projects in the merchant-power era. Understand the offtake contract and you understand why this cycle might not end like the last one. The power purchase agreement is doing the heavy lifting, not the reactor.
Knowledge check
Why is a long-term power purchase agreement with a creditworthy data-center buyer so important to nuclear project economics?
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Nuclear projects have enormous upfront capital costs and long payback periods, so their viability depends on predictable long-term revenue. A long PPA with a creditworthy buyer guarantees a price and a customer for decades, which reduces financing risk and makes it possible to raise capital that merchant market prices alone could not support.