Which two renewable generation technologies are specifically cited as microgrid components?
Traditional centralized electricity grids, designed around massive fossil-fuel turbines transmitting alternating current over vast transmission distances, are increasingly proving vulnerable to severe weather anomalies and transmission line losses. In response, modern municipal engineers are implementing localized microgrids: autonomous energy networks that integrate renewable sources such as photovoltaic arrays and small wind turbines with distributed battery storage systems. A microgrid operates either in synchronization with the macroscopic utility grid or, during catastrophic grid failures, in 'islanded' mode. By generating and consuming power locally, communities minimize transmission friction and maintain emergency power resilience for critical infrastructure including hospitals and water treatment facilities.
Answer and explanation
Correct answer: A. Photovoltaic arrays and wind turbines
- Step 1: Scan the passage for renewable generation technologies explicitly enumerated as microgrid generation sources.
- Step 2: The text specifies that microgrids "integrate renewable sources such as photovoltaic arrays and small wind turbines with distributed battery storage systems."
Answer
Photovoltaic arrays and wind turbines.
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