Sorry, the request or corresponding data for writing this three-paragraph content about Kiribati's electricity consumption, strategies for low-carbon electricity generation, and historical data on low-carbon electricity has not been provided. The text requires specific data on electricity consumption in Kiribati for the year 2021, possible lessons from other nations generating low-carbon electricity effectively, and the historical trend of low-carbon electricity in Kiribati. Without these crucial parameters, it's impossible to create the requested paragraphs accurately. Please provide the necessary data or a corresponding source for it.