Complex sentence: There are several challenges that need to be addressed to make electricity generation from wave energy commercially viable.Technological challenges include low turbine efficiencies, high turbine costs, unavailability of grid connections at potential sites, lack of experience and unpredictable environmental conditions.
Split into simpler sentences: There are several challenges that need to be addressed to make electricity generation from wave energy commercially viable. Low turbine efficiencies; high turbine costs; unavailability of grid connections at potential sites; lack of experience and unpredictable environmental conditions.