Final answer:
The most promising forms of alternative energy to power our grid include solar power, wind power, and hydroelectric power.
Step-by-step explanation:
The most promising forms of alternative energy to power our grid include solar power, wind power, and hydroelectric power.
Solar power: Solar photovoltaic (PV) and solar thermal are both abundant and easy to harness, making solar power a popular and promising option. It has the potential to provide a significant amount of electricity.
Wind power: Wind turbines can generate electricity when there is a steady and consistent wind supply. In areas with suitable wind conditions, wind power can be a reliable and renewable source of energy.
Hydroelectric power: Hydroelectric power relies on the force of flowing or falling water to generate electricity. It is a clean and reliable source of energy, particularly in areas with access to rivers or waterways.