The overall perception of renewable energy in SSA is generally
positive. Nonetheless in many SSA countries technologies
such as solar PV are still seen primarily as off-grid tools which
are expensive and marginal for grid-connected generation, and
with little potential to deliver large quantities of needed electricity.
Large hydropower stations have also sparked opposition
for a number of reasons. Some forms of biofuels—especially
Jathropha—have caused disappointment in their ability to
deliver because of unanticipated farming difficulties and overestimated
potentials.