The cheapest energies

Heavy fuel oil43,6
Water mill53,4
Onshore wind55,9
Combined cycle gas56,9
Natural gas58,3
Hydraulic water reservoir66,5
Wood trigeneration69,8
Liquefied petroleum gas73,2
Solar photovoltaic77,6
Domestic fuel oil77,8
Nuclear WPR97,4
Biomass wood99,9
Fossil fuel103,3
Hydraulic run off river105,8
Hydraulique small105,8
Thermal flame106,2
Waste to energy111,4
Hydrogen fuel cell137,6
Renewable energies138,6
Ultra-supercritical coal147,4
Plasma burner148,5
Offshore wind159,3
Supercritical coal160,1
Solar water thermal181,7
Concentrating solar219,2
Marine current396,8
Marine wave475,3
Marine tidal496,5
Marine thermal-
Coal capture and storage-
Limited energy resources

We find very quickly all the fossil fuels that are financially very interesting. Unsurprisingly, the most polluting ones come at the top of the line: lignite and heavy fuel oil. Natural gas in combined and conventional cycle. Domestic fuel. Coal is the most used energy on Earth to generate electricity.

Nuclear with the EPR, it is an estimate by the manufacturers. Nuclear. Oil was one of the cheapest fuels for power plants 50 years ago.

The variants of coal to reduce the ecological footprint, namely the supercritical, the ultra-supercritical, the “capture and storage” of CO2.

Renewable side

Geothermal energy is the most attractive energy in terms of price. The locations the most suitable for setting up geothermal plants are however not common.

The wind has a technology developed for several decades. The hydraulic that has been exploited for centuries. Trigeneration wood is very new and therefore has great potential for cost optimization.

Solar photovoltaic is undoubtedly the renewable energy that will have the greatest growth in the next 2-3 decades, we are constantly making progress, reducing the weight of appliances, energy efficiency, the possibilities of installations. The latest thin-film technology allows us to follow the shape of hills, mountains, and any type of roof.

Biomass with wood. The biomethane that starts its flight. Hydraulics on a smaller scale. Waste incineration will see its efficiency and load factor increase. Bioethanol. Hydrogen in the form of a fuel cell is still embryonic. Just like the plasma torch. Offshore wind should quickly move towards the onshore level in terms of energy prices. The solar thermal water that has been well exploited. Solar thermodynamics whose part in the energy industry is still tiny today. Micro-algae that will soon be ready for the natural generation of hydrocarbons.

Tidal power is probably the most unjustly neglected technology despite an incredible resource; its price should fall in this half century. For the moment only France and South Korea take advantage of the force of the tides; the latter country will be the leader in this field in the years to come.

The piezoelectric is in the state of abandonment.