Energy is recognised as the most crucial component of human progress and a
major determinant of the sustained growth of any country. The traditional
sources cast a menacing shadow over society as a whole, environmental values,
present and future global safety, and health. As a result, the Indian
electricity industry urgently needs to encourage renewable energy.
The term "renewable energy" refers to energy that is obtained from sources that
naturally replenish themselves over time, such as sunshine, wind, rain, tides,
waves, and geothermal heat. With the least amount of pollutants or carbon
emissions, it is the cleanest form of energy. Thus, the need for coal and other
fossil fuels is lessened. India can mitigate global warming and improve air
quality with the growth of renewable energy.
The market for renewable energy is rising as technological advancements drive
down costs and begin to fulfil the promise of a clean energy future.
Record-breaking American solar and wind energy production is being incorporated
into the national electrical system without sacrificing reliability.
Current Scenario of Renewable Energy in India:
The capacity for electricity generation in India has been particularly impacted
by the sector's growth throughout the years. This contributes to the
government's objective for sustainable development while playing a crucial role
in supplying the country with electricity. the launch of a massive
grid-connected rooftop solar programme.
The organisation of RE-Invest 2015:
A global investors' meet, the allocation of Rs. 38,000 crore (Euros 4 billion) for a Green Energy Corridor, the eight-fold
increase in the clean environment cess from Rs. 50 per tonne to Rs. 400 per
tonne (Euro 0.62 to Euros 5 per tonne), and the solar pump scheme with a goal of
incentivizing the use of solar energy.
How Does it Work: Renewable energy
Renewable energy, often known as clean energy, is derived from renewable natural
resources or processes. For instance, even if their availability is dependent on
the time and weather, sunlight and wind continue to shine and blow.
While using the power of nature has long been used for transportation, lighting,
heating, and other purposes, renewable energy is frequently considered of as a
relatively recent technology. Wind has been used to propel ships across the
oceans and power grain mills. The light warmed the day and assisted in starting
fires that lasted into the evening. However, during the last 500 years or more,
people have become more and more reliant on dirtier, more affordable energy
sources like coal and fracked gas.
Because of new, less expensive techniques for capturing and storing wind and
solar energy, renewable energy sources currently make up more than 12% of the
country's energy production. In both big and small scales, from enormous
offshore wind farms to rooftop solar panels on homes that can sell electricity
back to the grid, the usage of renewable energy is increasing. Whole rural
communities in Alaska, Kansas, and Missouri depend on renewable energy for
lighting and heating.
As the usage of renewable energy rises, one important goal will be to upgrade
the American power system, making it smarter, more secure, and more integrated
Oil, gas, and coal are examples of fossil fuels that are considered nonrenewable
or "dirty" energy.There are a finite number of nonrenewable energy sources. When
we fill up at the pump, we are utilising a limited resource that has been
refined from ancient crude oil.
Some nations have a larger availability of non-renewable energy sources than
others since these resources are frequently found in specific areas of the
planet. On the other hand, everyone has access to sunshine and wind. Promoting
renewable energy may also improve national security since it lessens a country's
reliance on imports from nations with vast fossil fuel resources.
Numerous non-renewable energy sources might be dangerous to both the environment
and human health. For instance, fracking technologies can cause earthquakes and
water pollution, coal power plants damage the air, and oil production may
include strip-mining Canada's boreal forest.
Types of Renewable Energy Sources:
- Solar Energy
For thousands of years, people have used sun energy to dry food, stay warm,
and cultivate crops. "More energy from the sun falls on the earth in one
hour than is used by everyone in the globe in one year," claims the National
Renewable Energy Laboratory. Today, we utilise the sun's rays in a variety
of ways, including heating our buildings, heating our water, and powering
Silicon or other elements are used to create solar, or photovoltaic (PV),
cells, which convert sunlight directly into electricity. Using rooftop solar
panels or neighborhood-wide community projects, distributed solar systems
produce electricity close to where residences and businesses are located.
Solar farms, which use mirrors to focus sunlight across acres of solar
cells, may produce enough electricity to power thousands of homes.
Waterbodies that are not environmentally sensitive can be used for floating
solar farms, sometimes known as "floatovoltaics."
Nearly 3% of the nation's electricity is generated by solar energy (some
sources estimate it will reach nearly 4 percent in 2022). However, solar
power accounted for 46% of all new generating capacity in 2021.
As long as they are installed appropriately, most solar panels have no
environmental impact beyond the manufacturing process and don't emit any air
pollutants or greenhouse gases.
- Wind Energy
From traditional windmills, we've come a long way. Turbines that are nearly
as broad in diameter and as tall as skyscrapers are now standing guard all
over the planet. Turbine blades are turned by wind energy, which feeds an
electric generator and generates electricity.
One of the least expensive energy sources in the US is wind, which generates
9.2% of the nation's electricity. Although wind turbines can be installed
anywhere with strong wind speeds, such as on hilltops and open plains, or
even offshore in open ocean, the top wind power states include California,
Iowa, Kansas, Oklahoma, and Texas.
Additional Renewable Energy Sources:
- Water-based electricity
Although wind energy is anticipated to overtake hydropower as the country's
leading renewable energy source in the near future. Hydropower uses water to
generate electricity by turning the turbine blades of a generator, often
fast-moving water in a large river or quickly falling water from a high
Mega-dams, often known as huge hydropower facilities, are frequently
regarded as nonrenewable energy sources both domestically and outside.
Mega-dams alter and reduce natural flows, limiting access for populations of
animals and people who depend on such rivers. Carefully maintained small
hydroelectric facilities, with installed capacities under around 40
megawatts, tend not to harm the environment as much because they only divert
a portion of the flow.
- Biomass Energy
Crops, scrap wood, and trees all include biomass, which is organic material
derived from plants and animals. Burning biomass releases chemical energy as
heat, which can be used to power a steam turbine to produce electricity.
For the purpose of generating power, biomass is frequently misrepresented as
a clean, renewable fuel and a more environmentally friendly option than coal
and other fossil fuels. Recent research reveals that many biomass types,
particularly those derived from forests, emit more carbon dioxide than
fossil fuels. Additionally, there are negative effects on biodiversity.
However, in the correct situations, some types of biomass energy might be a
low-carbon choice. An example of a low-carbon energy source is sawdust and
chips from sawmills, which would otherwise quickly disintegrate and release
- Geothermal Energy
You've used geothermal energy if you've ever indulged in a hot springs soak.
Due to the slow radioactive particle disintegration in the planet's core,
the temperature of the earth is about equivalent to that of the sun's
surface. Deep well drilling raises extremely hot subsurface water as a
hydrothermal resource to the surface, where it is pumped via a turbine to
generate energy. If they recycle the water and steam they utilise,
geothermal facilities often have low emissions. Although there are ways to
build geothermal plants without using subsurface reservoirs, there are
worries that doing so could make seismic activity more likely in places that
are already deemed to be geological hot spots.
Although tidal and wave energy are still in their infancy, the moon's
gravity will always govern the ocean, making it an appealing option to
capture its power. Tidal barrages, which function much like dams and are
situated in ocean straits or lagoons, are one type of tidal energy technique
that may affect animals. Similar to tidal power, wave power is generated by
devices anchored to the ocean floor or dam-like structures that are located
at or near the water's surface.
Renewable Energy In HomeSolar Energy
Using PV cell panels or passive solar home architecture, we may use the sun's
rays to power the entire house on a smaller scale.Homes that use passive solar
energy are built to let the sun in through south-facing windows and to keep the
warmth inside with the help of heat-storing materials like concrete, bricks, and
Some solar-powered homes produce more electricity than they need, enabling the
owner to sell the extra to the grid. Batteries are another viable option for
economically storing extra solar power so that it can be used at night.
Scientists are hard at work developing new innovations like solar windows and
roof shingles that combine form and function.
Geothermal Heat Pumps
The coils at the back of your refrigerator are a miniature heat pump that remove
heat from the interior to keep food fresh and cool. Geothermal technology is a
novel approach to this well-known operation.The earth's consistent temperature
(a few feet below the surface) is used in homes by geothermal or geoexchange
pumps to heat water and cool buildings throughout the winter and summer,
Although installing geothermal systems might be expensive at first, they often
pay for themselves within 5 to 10 years. They also operate more quietly, require
less maintenance, and have a longer lifespan than conventional air conditioners.
Small Wind Systems
A wind farm in your yard? Small wind turbines are frequently used by ranchers,
cell phone businesses, and even boats. Although some do-it-yourselfers install
turbines themselves, dealers now assist homeowners with the installation,
maintenance, and site preparation of wind turbines.
Selling The Energy You Generate
Homes powered by wind and solar energy can function independently or can be
connected to the wider electrical grid, depending on the energy supplier. Most
electric utilities allow homes to use a practise known as net metering, in which
they only pay the difference between the electricity they generate and use from
the grid. Your provider might pay you the retail amount for the excess
electricity if you generate more than you consume.
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