The energy reserves are quickly depleting mainly due to factors like unprecedented population explosion and the resulting demand for resources. So, energy conservation has become the need of the hour to ensure sufficient resources for future generations. Today, homes and businesses are turning to renewable fuel sources to promote sustainable living. Solar energy is one such energy source that can be harnessed without the fear of energy depletion. Here’s everything to know about solar energy:
What is solar energy?
Solar energy refers to electrical energy derived from the sun’s radiation. Specifically, photovoltaic mirrors or panels are used to convert sunlight to electricity to power homes and offices. Solar energy is considered a renewable energy source, as it does not deplete with consumption. Approximately 2.8% of the electricity generated in the country is estimated to be powered by solar energy.
Pros and cons
Here are some of the benefits to consider:
Environment-friendly source: As solar power generation does not emit greenhouse gasses or lead to air pollution, it contributes to a pollution-free environment.
Lower electricity bills: Traditional electrical power results in higher electricity bills than solar power. Further, one may avail of credit for surplus unutilized solar energy.
Availability during power outages: Solar power generating systems continue functioning even during power outages. This can help homes get electricity without interruption and help businesses save considerable time and money they would lose during an outage.
Conservation of natural resources: As solar energy is a renewable energy source, it helps in the conservation of natural resources for future generations.
Here are some drawbacks worth noting before opting for residential solar power systems:
Difficult to move: One of the major drawbacks of solar power is that the panels are difficult to move, so the system works best for permanent residences and offices. For instance, those who change their homes frequently may need to look for smaller, portable solar panels.
Not suitable for all areas: Although it is possible to harness solar power even in areas receiving less sunlight, the energy supply in such areas may be limited. In such cases, one may need to seek the support of traditional energy sources.
Expensive installation: Solar panel generating systems can be expensive to install, especially when working on large-scale projects. So, the costs often deter people from switching to solar power.
Requires space: Solar panels typically occupy considerable space in open areas and on rooftops. So, solar energy systems may be difficult to install in areas with limited space.
Types of solar power
Photovoltaic solar energy: This type of energy is derived by using photovoltaic panels containing solar cells that generate electricity, which is converted to alternating current by converters. Photovoltaic energy is among the most popular types of solar power today.
Solar thermal energy: This type comprises reflectors and receivers, which work in tandem to produce energy. Reflectors harness energy from the sun, whereas receivers produce heat-transfer fluid to generate steam. A turbine then converts this steam to mechanical energy, which powers a generator to facilitate electricity supply.
Water heating solar power: Here, a sun-facing collector generates a working fluid, which passes through a storage system and heats up water.
Concentrated solar energy: Here, solar energy is harnessed through mirrors and lenses, which transmit sunlight to a solar receiver. The receiver then converts sunlight to electricity.
