Two big battery announcements landed within months of each other. Adani Green called its Khavda, Gujarat project one of the "world's largest single-location" battery storage systems. BYD said it had signed the "world's largest grid-scale battery storage projects" at 12.5GWh. Put side by side, they sound like competing claims to the same crown. They're not.

What each claim actually measures: Adani's Khavda project is 3.37GWh at a single physical site, genuinely large for one location. Adani's own press release carries a caveat that's easy to lose in re-reporting: it's the largest single-location system "outside China."

BYD's 12.5GWh figure is a signed contract across five separate sites in Saudi Arabia, not one location, and BYD's own materials cite a combined 15.1GWh once an earlier deal is added in. It's a real number, but it's a pipeline of contracted work spread across multiple projects, not a single installation.

The bottom line: one claim measures a single site's storage capacity, with a geographic asterisk. The other measures total contracted volume across five sites. Both numbers are real. Neither is a fair comparison to the other, and readers comparing the two headlines would reasonably, and wrongly, assume they're competing for the same record.