The second stage of the Tokelau Renewable Energy Project is underway, with the launch of work on Nukunonu last Friday.
Tokelau aims to have all its energy needs provided by renewable sources, mostly from solar energy.
New Zealand company PowerSmart New Zealand is installing solar units which have now been in use on Fakaofo for some weeks.
The project is due to be launched on the third atoll, Atafu, at the end of next month.
Tokelau's general manager in Apia, Joe Suveinakama, says they are also looking at how coconut oil can be factored in to the power source mix.