Did MEC Unit Issues Cause Weekend Load Shedding Woes?

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Manzano said he coordinated with GPA about the scheduled maintenance in advance of Saturday and he advised them to make sure all GPA’s peaking units were running to anticipate the maintenance.

Did possible miscommunication between GPA and its private energy partners this weekend cause the recent surge of load shedding for many Guam residents?

Rino Manzano, General Manager of the Marianas Energy Company, says that neither MEC unit no.8 nor no.9 experienced any unexpected issues over the weekend. Now Manzano says that MEC 8 and 9 did go down on Saturday but he says that Mariana’s energy had notified GPA about it in advance. But even if MEC 8 and 9 went down for scheduled maintenance, it was completed during the day when power demand was low. Proving yet again how vulnerable Guam’s power system is, Manzano says that MEC 8 and 9 were only 12 MW short of full capacity Saturday evening. This shortage caused GPA to shed circuits to parts of Guam’s central villages. But Manzano said he coordinated with GPA about the scheduled maintenance in advance of Saturday and he advised them to make sure all GPA’s peaking units were running to anticipate the maintenance.