The Future of Solar Energy

Solar energy, a renewable resource from the sun, holds promise for future energy generation. It can be harnessed through passive solar heating or converted into electricity using photovoltaic cells. Despite challenges like cost and scale, solar technology is improving and may become a cost-effective power source.

What is a key characteristic of solar energy that makes it promising for future energy needs?

• It is a non-renewable resource.

• It is a renewable resource that will last for millions of years.

• It is easy to harness and use.

• It is the cheapest form of energy available.

What is passive solar heating primarily concerned with?

• Generating electricity from solar panels.

• Capturing the sun's heat through well-insulated windows.

• Using wind energy to supplement solar power.

• Storing solar energy in batteries.

What is the main function of photovoltaic cells?

• To store solar energy for later use.

• To convert the sun's energy directly into electricity.

• To reflect sunlight away from buildings.

• To heat water using solar power.

What is a major drawback of current solar cell technology?

• It is inexpensive but inefficient.

• It requires a small number of units to be effective.

• It is expensive and requires many units.

• It is only effective in tropical regions.

What potential does solar cell technology have for the future?

• It will be replaced by other renewable technologies.

• It will only be useful for small-scale applications.

• It will remain too expensive for widespread use.

• It could provide cost-effective electrical power on a large scale.