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Bill Hoelzer

1 course
4.8 average rating
237 students

About

Bill Hoelzer is a marketing professional with more than 10-years of experience in solar and energy efficiency. He runs Volta Strategies, a marketing partner for residential solar installers. Volta Strategies is best known for helping solar installers grow profitably by doing more business through word-of-mouth and digital marketing.

Course subjects

Course 1