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PG&E, SCE and SDG&E report partial submetering rollouts; automation, vendor interest remain challenges
Summary
At a CPUC workshop on submetering, program leads from Pacific Gas & Electric, Southern California Edison and San Diego Gas & Electric said they have built billing and enrollment systems but face delays to full automation, limited MDMA vendor interest and cost barriers for residential deployments.
Representatives of California’s three largest investor-owned utilities reported progress and remaining obstacles in implementing the CPUC’s submetering protocol, but said full automation and broad vendor participation are not yet in place.
“I'm Ben Motherstead. I am the program lead at PG&E for the submetering program,” said Ben Motherstead, describing PG&E’s direction to have “a fully automated billing system ready by the end of 2024” that was delayed by the utility’s billing modernization work. He said PG&E has implemented a partial automation solution and expects the interim approach to be ready by mid‑year (date not specified). Motherstead emphasized that PG&E views submetering as part of a broader vehicle‑grid integration portfolio and cited pilot results showing load shifting and high customer satisfaction.
Aaron Dyer of Southern California Edison said SCE has an approved equipment Approved Product List (APL) and has been working to qualify Meter Data Management Agents (MDMAs). “We have 1 fully active currently, Grid Tractor. We…
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