There are three ways to split the corridor bill, and none are free

The corridor does not bill itself. That's the whole problem.

Stand in Rectenna Field Twelve at midmorning and the beam is landing exactly where it should: 2.1 gigawatts of it, dead center on the mesh, three weeks after this same field went dark for fifty-eight minutes because someone above the ground-control rotation reached up and narrowed it by hand. The logs settled how the blackout happened. They did not settle who pays to keep it from happening again. That question has hardened into three formulas, and engineers can now actually run the numbers on all of them.

Here is the beautiful part, and I mean it: keeping a beam corridor clear is real work with a real price tag. The Solaria Array's downlink stays inside a protected sky corridor that has to be recalibrated as the geostationary anchor drifts, swept for orbital debris, and held to a pointing tolerance measured in fractions of an arcsecond. "People think the cost is the panels," said Dario Feng, a calibration lead who walked me through the drift-defense budget. "The cost is standing here forever making sure a bridge that isn't made of anything stays exactly where we put it." That standing-forever is what the established regions want recovered. It is not small watts.

The first formula is usage-based — the one grid financiers proposed and the settlements rejected twice, citing recovery-era language that called the corridors a commons. You pay in proportion to what you pull down. Feng's team ran it against three newer settlements' load curves. The result is brutal in a quiet way: the settlements still building out their draw, the ones that most need cheap power to industrialize, carry the steepest per-watt burden precisely when they can least absorb it. "It taxes growth," Feng said. "A field that's ramping up looks, on the bill, exactly like a field that's wasteful."

The second formula bills by wealth: settlement bond rating, stewardship credits, established GDP, whatever proxy the Assembly could stomach. It spares the young colonies and lands the weight on Earth's treaty powers and the older L4 Habitats. Modeled out, it holds newer settlements' effective energy cost nearly flat while roughly doubling the corridor share carried by the established regions who built the corridors in the first place. Nobody expects them to sign that with a smile.

The third is a flat share, split evenly across every polity drawing from the corridor. It's the simplest to audit and the easiest to game rhetorically. A settlement of forty thousand pays what a treaty power of four hundred million pays. "Flat is fair the way a coin flip is fair," one settlement envoy told me, declining to be named ahead of the winter session. "It ignores everything true about the parties."

All three are being argued as if they're accounting. They aren't. Here is the ugly part, because there is always an ugly part: the throttle logs proved a beam can be turned into leverage, and the Charter Court has never once ruled on who's authorized to narrow one. Ken Nakashima will tell you the real fight is on the ground, that the sky corridor just carries what the ground station decides to send. I think that gets the geometry backwards — the leverage sits at thirty-six thousand kilometers, not at the antenna mesh — but that's an old argument between us, and it won't get settled by a beam schedule.

Until the Court rules, the billing formula is the only written answer to a question everyone is now asking: what does a settlement owe for power that crosses thirty-six thousand kilometers of nothing to reach it, and what happens to the one that decides it owes less.

"We can meter every watt in the corridor," Feng said, watching the readout hold steady. "What we can't meter is what it's worth to the people standing under it."