Holcomb Expansion Developments GARDEN CITY, KAN. (hppr) - Sunflower Energy's proposed expansion at its Holcomb, Kan., site would involve two new plants rather than the three initially proposed. Meanwhile, on the other side of the state, the Kansas Sierra Club has filed a suit against the Kansas Department of Health and Environment in hopes of forcing a "quasi-judicial" hearing on Sunflower's application. © Copyright 2013, hppr