billion people lack access to clean cooking solutions and are exposed to dangerous levels of indoor air pollution". At the same time, an economy reliant on fossil fuels is causing changes to our climate. Energy is central to nearly every major challenge and opportunity the world faces today, including for example adaptation to climate change, food security, health, education, sustainable cities, jobs and transport. Hence, it is imperative that we move to more environment-friendly sources of energy, that are accessible by the most remote areas of the world. Achieving SDG 7 is expected to galvanize actions to meet the Paris Agreement on climate change. Affordable, clean and modern Energy For a long time, people have been using coal and oil as primary energy and to generate electricity. Seeing the harm they have been doing to the environment countries all over the world are looking into other alternatives for energy production (renewable energy sources) such as: Solar Energy: This is energy derived from solar radiation. This is a very clean form of energy and can be used extensively due to its abundance. Technologies like photovoltaics, concentrated solar power and solar heating and cooling, are fast catching on to produce and supply energy even to places with no access to conventional fuels. Wind Power: A clean, free, albeit intermittently available, form of energy, the kinetic energy possessed by moving winds can be captured to produce energy. Wind farms, consisting of a number of individual wind turbines, are installed at frequently windy sites. Geothermal Energy: Heat that comes from the sub-surface of the Earth can be tapped to produce energy. Geothermal power stations and heat pumps are used to capture the heat released from hot springs. This energy does not usually release any harmful emissions, and due to Earth's high heat capacity, can be easily replenished. Hydropower: This is the energy derived by tapping the kinetic energy of flowing water. By setting up turbines in rivers we can produce energy in a clean and emission-free way. Hydropower produces the most energy annually of the modern renewables Tidal Power: Energy from tidal forces can be tapped to generate electricity. Although not so commonly used, this clean and readily available source of energy has a great capacity as an alternative to conventional sources of energy. Biomass: Biomass can be burned and be used for energy production through direct firing, co-firing, pyrolysis, gasification and anaerobic decomposition.