 Comparing to other energy sources, a 2019 study by Lazard estimated the unsubsidized cost of electricity to 3.2 to 4.2 cent per kWh for Solar PV at utility scale and 2.8 to 5.4 cent per kWh for wind power.A report published by IRENA in 2014 claimed that commercial use of OTEC technology can be scaled in a variety of ways.“...small-scale OTEC plants can be made to accommodate the electricity production of small communities (5 000-50 000 residents), but would require the production of valuable by-products – like fresh water or cooling – to be economically viable”.