While renewable energy continues to inspire researchers to produce green and environmentally friendly electricity, we need to find new sources of energy to meet our daily needs and fight global warming. In that case, what technology innovations are underway to source the energies of tomorrow? What type of energy will our cars be running on in 2050? Will we still need electricity to light our homes? New ways to explore renewable energy sources, bioluminescence, blue osmotic energy, green nuclear fusion, synthetic petrol made from green-house gases... These are some of the prospective research avenues.