A committee involved with the nation's energy policy met Wednesday to discuss revisions to the 2-year-old feed-in tariff system for renewable energy.

It will also investigate a utility that recently halted renewable electricity purchases under the system by claiming it didn't have the capacity to handle the large amounts being generated.

Since the feed-in tariff system was introduced in July 2012, obliging utilities to purchase electricity generated from solar, wind, geothermal, mini-hydro and biomass sources for a fixed price over a fixed period, growth in renewable energy has been rapid.