Electric Transmission Texas LLC (ETT) has completed a contract with NGK-Locke, Inc. for a state-of-the-art, sodium-sulfur 4-megawatt NASĀ® battery system, which will be installed in Presidio, Texas. ETT is a joint venture between American Electric Power (NYSE: AEP) and MidAmerican Energy Holdings Company (MidAmerican).
The NAS battery will be the first in Texas and the largest [...]








