question: What was the first commercial solar concentrating system ?
answer: Solar Total Energy Project ( STEP ) in Shenandoah , Georgia , USA
turker_answer: Solar Total Energy Project ( STEP ) in Shenandoah , Georgia , USA was the first commercial solar concentrating system .
rule-based: The first commercial solar concentrating system was solar Total Energy Project ( STEP ) in Shenandoah , Georgia , USA .