During the last few decades HELP-O could implement many tree planting programs. The first program implemented under UNDP SGP GEF grant and second tree planting program implemented under USAID SARI ENERGY Program. The first program implemented in 1994 and second program implemented on 2010. When HELP-O implemented second program could develop city level program. It is called Make Galle Clean and Green Energy City. It was one of significant thing in HELP-O to convert organization into city level program. Under this component have been conducted many awareness programs, campaigns, experience exchange programs implemented. Not even that able to construct many biogas units in city level where highly waste generate areas.