Categories 231 through 235 include both electric power plants and combined heat and power (CHP) plants. Heat-only plants, whatever the type of fuel, are reportable under category 236. Activities relating to fuelwood/charcoal production, energy manufacturing and natural resources extraction (including oil and gas pipelines) are reportable under categories 312, 321 et 322 respectively.
#dac231 - Energy generation, distribution and efficiency – general
#dac232 - Energy generation, renewable sources
#dac233 - Energy generation, non-renewable sources
#dac234 - Hybrid energy electric power plants
#dac235 - Nuclear energy electric power plants
#dac236 - Heating, cooling and energy distribution
Media or #OpenData
With a hashtag per article, anyone can tag content relevant to the status and implementation of the article, and share it via social media as explained at #tags in support of easy information retrieval (video on YouTube).
If you publish a website or blog, you can also embed the Twitter timeline of a hashtag as explained at How to embed a #tag timeline in your website or blog? (Video on YouTube). There is a Twitter timeline embedded at #udhr19 - Freedom of opinion & expression; to seek & receive information.