ISO-NE asks FERC to add a review step for asset-condition transmission work

ISO New England has filed a proposal with FERC that would add a grid-operator review to 'asset condition' transmission projects. These are the projects transmission owners select and build largely on their own, Utility Dive reported.

The category is mostly replacements for aging infrastructure, and historically it has run with limited oversight. For New England states and ratepayer advocates, that combination has been a source of complaint for years.

The proposal matters less for any single project than for the mechanism it would create. If FERC approves it, ISO-NE would sit between a transmission owner's project list and the costs that flow into rates. Asset-condition work has been the corner of the grid where utilities had the most discretion and the least outside review. Even a light checkpoint changes that.

For transition capital, this is the unglamorous end of the transmission market. No new rights of way. No new interconnections. No novel technology. Just the steady cost of keeping an aging system in service. That predictability is precisely why asset-condition work has been a comfortable rate-base category — and precisely why it attracted the complaint.

The practical effects would likely show up as documentation, scheduling, and the timing of when objections can be raised. Rate base remains rate base — the money still flows, and the projects still get built. But the path to recovery becomes more deliberate, and states and advocates gain a formal place to press their arguments before spending is locked in.

For investors and counterparties in New England transmission, the consequence is an approval clock that may grow. The rate base is not disappearing; it is getting a checkpoint. How much review counts as enough, and what it does to project timing, remains to be seen.