Source: Harvest Power Press Release, September 6, 2011/Greg Huang, Xconomy, September 6, 2011. Harvest Power, a leader in producing renewable energy, soil and mulch products from organic materials, today announced it has acquired 100% of Coastal Supply Company, Inc, a Delaware-based soil and mulch manufacturer. The transaction integrates Coastal Supply’s leadership position in garden products manufacturing and distribution into Harvest’s existing operations, allowing the combined companies to deliver superior products and performance to customers.