New energy refers to a new type of renewable energy in the energy field relative to traditional fossil fuels. They typically have characteristics of sustainability, low carbon emissions, and environmental friendliness. The following are some common types of new energy:

1. Solar energy: Solar photovoltaic and photothermal technologies utilize the energy of sunlight to generate electricity or heat. Solar panels convert solar radiation into direct electrical energy, while solar thermal systems use solar collectors to convert solar energy into hot water, air conditioning, or heating.

2. Wind energy: Wind energy is a form of converting the power of wind into electrical energy. Wind turbines convert wind energy into mechanical energy through rotating wind turbines, which are then used to convert it into electrical energy.

3. Water energy: Water energy is converted into electricity by utilizing water flow or water level differences. Hydroelectric power generation is the most common form of water energy utilization, which generates electricity by driving a turbine generator through water flow. In addition, tidal energy and ocean energy also belong to the category of water energy.

4. Biomass energy: Biomass energy refers to the energy obtained through combustion, fermentation, or chemical conversion of biomass materials (such as crop waste, wood, biological waste, etc.). Biomass energy can be used for power generation, heating, fuel production, and other aspects.

5. Geothermal energy: Geothermal energy is the use of thermal energy in the Earth's crust to generate electricity or heating. Geothermal power generation uses geothermal steam or hot water to drive turbines to generate electricity, while ground source heat pumps utilize the constant temperature underground for heating and cooling.

These new energy forms are constantly developing and applying globally, which is of great significance for reducing carbon emissions and promoting sustainable development. With technological progress and economic support, the use of new energy is gradually increasing and is expected to become one of the main sources of energy in the future.