If you work in solar you are destined to hear or come across the term P50 or P90 or P99. This, at first, is a very confusing ...

PUNXSUTAWNEY, Pa. — Punxsutawney Phil saw his shadow Sunday and predicted six more weeks of wintry weather, his top-hatted handlers announced to a raucous, record-sized crowd at Gobbler’s Knob ...