Hours Of Operations Green Mountain Energy Texas Plano 75075 Green Mountain Energy Hours of Operation and Location in Plano, TX 75075 4.3 - 115 votes 1255 W 15th St, Plano, TX 75075 (972) 301-7229 Get Directions Green Mountain Energy Hours Category: Home & Garden Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore PlanoView More Apparel Sam's ClubCostcoMarshallsRoss Dress for LessBurlington Coat Factory Sports CostcoTargetSports AuthorityLA FitnessNike Jewelry Sam's ClubCostcoMarshallsHobby LobbyBurlington Coat Factory Recommend For You Toys R Us A Locksmith Service A Nails A Plus Nails A Salon A-1 Appliance A-1 Appliance Service A+ Roofing Alcoholics Anonymous Chamberlain Group