Investment idea for energy and gas research, renewable energy, because Spain is too dependent on other countries such as Russia, Algeria, etc. Investment of clean nuclear energy and power plants. According to Eurostat’s report, Sweden was the EU country that used the most renewable energy in 2022. Almost two thirds of their gross final energy consumption came from renewable sources. Sweden mainly used hydropower, wind, solid and liquid biofuels, as well as heat pumps. Certain taxes could be earmarked to aid this type of research.