Peak Energy reaches balance-of-system cost parity with LFP today
Landon Mossberg · The case for sodium-ion · Aug 14, 2025 · at 33:37
Landon Mossberg, CEO of Peak Energy, explains how passive system design offsets cell-level energy density disadvantages.
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“We try to depopulate a lot of the subsystems that drive cost, complexity, and energy density loss here. And what that lets us do is actually get to a balance of system cost Despite a serious energy density penalty that is already today pretty much on par with where LFP systems are.”
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More from Landon Mossberg
Chinese sodium-ion prices will undercut LFP by 2030, Mossberg predicts
“From the quotes and what we're hearing from the suppliers, not just cells, but also materials, we see a really low-risk pathway to the crossover point on price with LFP coming somewhere between twenty-twenty-eight and twenty-thirty out of China.”
Waiting 4-5 years cedes sodium-ion economy of scale to China
“So if we wait for, Four or five years to get into this game, we're going to be in a similar place that we are today on LFP, but, ah, today at least, you're not facing such a huge, ah, economy of scale challenge.”
Peak Energy's passive sodium-ion system uses 50x less aux power than LFP
“Just on aux power, we're 50 times, a little bit more than 50 times more efficient. We use 50 times less power than an equivalent LFP system.”
Peak Energy claims $75/kWh NPV benefit over LFP in hot climates
“If you add all that stuff together, we're at about, in a hot region, like let's take like Miami or Phoenix, we're at about a 75 dollar per kilowatt hour NPV benefit on a TCO basis versus an equivalent LFP system.”