[en] Several renewable energy options are discussed, namely solar energy, passive solar systems, photovoltaics, wind energy and biomass. Although technical feasibility has been shown for various systems, there has been slow growth in their implementation. Some aspects of this slow growth are in the domains of economic viability, long term reliability, the training of operators and installers, public perception and education and govenmental attitudes. It is estimated that the increased use of renewable energy depends on several factors which include government policies, funding, energy conservation, pricing policies, reliable commercial products, public education and adequate training. 11 refs