Readability of geothermal energy information in vocational textbooks

The development of renewable energy in a country is influenced by public understanding by its people and this understanding is influenced by public literacy. To improve this, effort is needed to increase the level public literacy by improving readability. We study the readability of geothermal energy in vocational high school textbooks written in Indonesian. This is conducted because it is considered to have an effect on the low utilization ratio in the country. This readability research uses survey methods with population is student in vocational high school. Text material is read by the respondent and they are asked to give the impression whether the text is easy or difficult to understand. From this study, the factors that influence the ability to understand text information are displayed. The purpose of this study is to improve geothermal energy literacy, there for the application and development of this energy increase in the future.