West-to-east power flows on the ERCOT transmission system are bound to rise substantially, following a surge in wind capacity addition in the Panhandle northwestern Texas, and new solar PV resources in far southwest Texas. Rising supply of inherently intermittent renewable energy is proving difficult to integrate; hence transmission line upgrades need to be fast-tracked to allow the grid operator ERCOT balance wind energy in the Northwest with flexible gas-fired generation in the eastern part of the state.
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