← All glossary terms

Utility Rates, Grid, and Markets

REC

Renewable Energy Certificate represents the environmental attribute of one MWh of renewable generation. RECs can support renewable claims, but they are not the same as physical deliverability, hourly carbon matching, or local grid decarbonization.

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Relay protection

Relay protection uses sensors, logic, and protective devices to detect abnormal conditions and trip breakers. Protection design must coordinate utility and customer equipment so faults are isolated quickly without unnecessary outages.

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Wholesale colocation

Wholesale colocation serves larger deployments, often measured in hundreds of kW to multiple MW and delivered as suites, data halls, or dedicated capacity blocks. It behaves more like infrastructure leasing than small-scale hosting.

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Distribution utility

Distribution utility owns or operates lower-voltage delivery facilities serving end users. For data centers, the distribution utility may handle service requests even when transmission upgrades or wholesale supply issues drive the real constraint.

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