Solar Energy
Energy harnessed from the sun's radiation using photovoltaic panels or concentrated solar power systems to generate electricity or heat.
EnergySolar energy is radiant energy from the sun that is captured and converted into usable electricity or heat. It is the most abundant energy source on Earth - the sun delivers more energy to the planet in one hour than humanity uses in an entire year.
Technologies
- Photovoltaic (PV): Solar cells convert sunlight directly into electricity. Used in rooftop panels, solar farms, and building-integrated PV.
- Concentrated Solar Power (CSP): Mirrors or lenses concentrate sunlight onto a receiver to produce steam that drives a turbine.
- Solar thermal: Captures heat for water heating, industrial processes, or space heating.
Key Metrics
- Global installed PV capacity exceeded 1.6 TW in 2024.
- Solar is now the cheapest source of electricity in most regions.
- Module efficiency has risen from ~15% to over 25% in commercial panels.
Career Relevance
Solar is one of the largest employers in the green energy sector. Key roles include PV system designers, installation engineers, solar sales consultants, O&M technicians, and research scientists. Certifications like NABCEP (North American Board of Certified Energy Practitioners) are highly valued.