Five years after it introduced rules to curb generators’ uninstructed deviations from dispatch instructions, MISO said such departures are worse than ever and it likely needs to strengthen rules and software.

MISO has FERC’s go-ahead to bar its renewable energy resources from supplying ramping reserves.

In a June 5 response to FERC, MISO defended its plan to bar renewable energy from supplying ramping reserves.

FERC last week told MISO it must provide more details around its plan to exclude wind and solar generation from supplying ramping service.

MISO wants to exclude its intermittent class of resources from providing ramp capability by midyear.

Distributed energy resources will function best in MISO’s markets if aggregations are limited to a single pricing node, RTO officials said.

MISO can begin requiring new solar generation in its footprint to become dispatchable by early 2022, FERC ruled.

MISO’s proposal to bring solar resources under its umbrella of dispatchable intermittent resources prompted a deficiency letter from FERC.

A surge in generation interconnection requests has MISO proposing to require all new solar to register as dispatchable intermittent resources.