<Li> Hydropower <Ul> <Li> Hydroelectricity </Li> <Li> Wave farm </Li> <Li> Tidal power </Li> </Ul> </Li> <Ul> <Li> Hydroelectricity </Li> <Li> Wave farm </Li> <Li> Tidal power </Li> </Ul> <Tr> <Th> Use and supply </Th> <Td> <Ul> <Li> Energy consumption </Li> <Li> Energy storage </Li> <Li> World energy consumption </Li> <Li> Energy security </Li> <Li> Energy conservation </Li> <Li> Efficient energy use <Ul> <Li> Transport </Li> <Li> Agriculture </Li> </Ul> </Li> <Li> Renewable energy </Li> <Li> Sustainable energy </Li> <Li> Energy policy <Ul> <Li> Energy development </Li> </Ul> </Li> <Li> Worldwide energy supply </Li> <Li> South America </Li> <Li> USA </Li> <Li> Mexico </Li> <Li> Canada </Li> <Li> Europe </Li> <Li> Asia </Li> <Li> Africa </Li> <Li> Australia </Li> </Ul> </Td> </Tr> <Ul> <Li> Energy consumption </Li> <Li> Energy storage </Li> <Li> World energy consumption </Li> <Li> Energy security </Li> <Li> Energy conservation </Li> <Li> Efficient energy use <Ul> <Li> Transport </Li> <Li> Agriculture </Li> </Ul> </Li> <Li> Renewable energy </Li> <Li> Sustainable energy </Li> <Li> Energy policy <Ul> <Li> Energy development </Li> </Ul> </Li> <Li> Worldwide energy supply </Li> <Li> South America </Li> <Li> USA </Li> <Li> Mexico </Li> <Li> Canada </Li> <Li> Europe </Li> <Li> Asia </Li> <Li> Africa </Li> <Li> Australia </Li> </Ul>

Which type of energy is stored in chemical compounds and released in chemical reactions (points 3)