cities with a lot of solar panels

Cities With More Solar Panels Than Electricity

In the 21st century, one of the greatest challenge faced by the countries is the need to provide energy both sustainably and sufficiently, and with the world developing in leaps and bounds, the reservoirs of fossil fuels are decreasing faster than ever, also keeping in mind the environmental jeopardies that follow, the world is soon targeting for a renewable and sustainable source of energy, and that’s where the concept of Solar energy comes.

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cities with a lot of solar panels

The benefits of solar energy are many, one of it’s main benefits is that it’s affordable, it’s much cheaper than conventional fossil fuels and there are no costs involved other than installment and rohtined maintenance costs, thus a person can save a lot more by a one time investment, also it is very environment friendly, there are no harmful emissions involved thus it doesn’t leave a huge carbon footprint over the world. So many countries have taken steps to utilize the best of the suns abundant resources, and with proper planning, subsidies to the solar panel companies and also discounts to the users, many countries have created a success story. Currently there are a number of cities over the world, that utilize the best of the sun’s resources rather than relying on the conventional grid electricity. Ever since the Paris agreement, with countries taking an action plan to reduce climate change by 2% annually, many countries have set long term plans to utilize the best of the renewable energy sources available and they’re getting the profit now.

According to a research conducted by CDP, a global non profit organization working on the environment issues, among the 570 world’s cities they have resources on, over 100 of them are  now getting at least 70% of their electricity from renewable sources such as hydro, geothermal, solar and wind. These include many big cities across the world including Auckland (New Zealand); Nairobi (Kenya); Oslo (Norway); Seattle (USA) and Vancouver (Canada), these cities have invested heavily in the development of renewable energy and this helped in cutting down the overall costs for people.

In the United Kingdom, a number of local governments and leaders have set up the UK100 action plan to use meet the demands of 100% of it’s energy by renewable sources in 80 cities and towns by 2050, these include the metropolis of Manchester, Birmingham, Newcastle, Glasgow etc.

In the United States of America, solar power has taken a huge leap for the last couple of years, currently there’s  around 27000 megawatts of solar electric capacity in the United States, making up a significant portion of the electricity used for household and commercial usage. But for 20 cities across the USA, it’s a success story, they make up for about 6% of USA’s solar electricity despite occupying barely .1% of the countries landmass. These cities have created the scope for producing a large chunk of their energy through solar power, and plan to reach 100% if solar energy in the near future

The 20 best solar powered countries in the USA are:

1.Los Angeles, CA: 215 MW installed, 55 watts per capita

2.San Diego, CA: 189 MW installed, 136 per capita

3.Phoenix, AZ: 147 MW installed, 96 watts per capita

4.Honolulu, HI: 146 MW installed, 96 watts per capita

5.San Jose, CA: 141 MW installed, 139 watts per capita

6.Indianapolis, IN: 124 MW installed, 146 watts per capita

7.San Antonio, TX: 108 MW installed, 75 watts per capita

8.New York, NY: 84 MW installed, 10 watts per capita

9.Albuquerque, NM: 64 MW installed, 114 watts per capita

10.Las Vegas, NV: 58 MW installed, 94 watts per capita

11.San Francisco, CA: 41 MW installed, 48 watts per capita

12.New Orleans, LA: 35 MW installed, 90 watts per capita

13.Austin, TX : 33 MW installed, 36 watts per capita

14.Sacramento, CA: 32 MW installed, 66 watts per capita

15.Riverside, CA: 38 MW installed, 88 watts per capita

16.Jacksonville, FL: 24 MW installed, 28 watts per capita

17.Newark, NJ: 21 MW installed, 75 watts per capita

18.Portland, OR: 19 MW installed, 31 watts per capita

19.Boston, MA: 15 MW installed, 23 watts per capita

20., DC: 14 MW installed, 20 watts per capita

How Solar Energy Can Make the World Green

In the 21st century, one of the greatest challenge faced by the countries is the need to provide energy both sustainably and sufficiently, and with the world developing in leaps and bounds, the reservoirs of fossil fuels are decreasing faster than ever, also keeping in mind the environmental jeopardies that follow, the world is soon targeting for a far more environment friendly alternative, that’s renewable and sustainable, and that’s where the concept of Solar evergy comes.

can solar make the world green

What is the solar energy:

Solar energy is basically the energy harnessed from the sun by using solar panels, there are silicon atoms in the solar panels that convert the sunlight to electrical energy for household usage.

Solar energy and it’s benefits to the environment:

Solar energy can play in important role when it comes to producing energy and also fight climate change and global warming, there are a number of ways through which solar energy can help in making the world green and a better place for survival.

Solar energy do not pollute the environment in any way. In order to produce energy through fossil fuels, it needs to be burnt through the process of combustion which emits a large amount of Carbon dioxide and other greenhouse gases, but when it comes to solar energy, it’s a completely different story, solar panels don’t emit any sort of greenhouse gas whatsoever, there is a small emission during the production, installation and transportation of the panels, but they are too minuscule to worry about.

One of the most important, yet least talked about benefits of solar panels is that they don’t pollute the water. Most traditional powerplants like coal or biomass plants, require a large amount of water for it’s vital cooling processes, thus not only polluting water but also draining out the vital water resources, but it’s a completely different story in case of solar panels, they don’t require any amount of water to fulfill it’s operations, thus preventing water pollution and saving water crisis

Solar energy is also the best source of renewable energy around, with most fossil fuels there require extraction, mining and transportation to be utilized for every production, also these expeditions can harm the land and soil of the region but solar energy is completely renewable. The sun is the source of abundant energy, and solar panels thrive by harnessing the energy from the sun. The sun does not have any chances of running out anytime soon, so it goes without saying that solar energy is the most renewable source of energy available for the planet.

Solar energy also reduces sound Pollution to a great extent, most of the power plants create a huge amount of noise during energy production, but solar panels are silent and they make no noise whatsoever, so they are the far more feasible process for urban areas.

Not only the environmental issues, but solar panels are more affordable and with a large amount of subsidies and discounts involved, it goes without saying that using solar panels instead of grid extensions is the best way of going green in the current world.

sun gives energy

How Sun Offers Us Unlimited Energy

The sun is the greatest source of energy to the earth, one of the main reasons behind the earth being habitable is because of it’s position in the solar system, situated in the so called Goldilocks zone, the earth received the perfect amount of sunlight, neither too much, not too little to little for life to thrive in the little planet.

sun gives energy

The sun has three parts in general; the core, the radiative zone surrounding the core and the convective zone. The core is the smallest part of the sun, it makes upto about 25 percent of it, the radiative zone makes up of about 45 Percent and the rest 30 percent is covered by the convective zone.

But exactly how is the energy produced in the sun? Technically it’s through the process of nuclear fusion. The  sun is a source of massive fusion reaction. There’s always fusion reaction going on at the centre of the sun, i.e the core . Due to the intense temperature and pressure at the core, the hydrogen atoms are converted to Helium atoms.

The nuclear fusion reaction that occurs at the sun’s core radiates a very high amount of energy in the form of light and heat, but it takes a number of processes for sunlight to enter the earth, or other planets. These steps generally rely on different parts of the sun.

The end result of such fusion reactions are four hydrogen atoms tunred into one alpha particle- two protons and two neutrons as a particle that’s identical to a helium nucleus, two positrons and released in the process along with two neutrinos which changes the two protons into neutrons and a large amount of energy. It is said that the cores interior is  250 billion atmospheres (25.33 trillion KPa) and 15.7 million kelvin, respectively.

The outward pressure created by the sun’s core is balanced by the inward pressure created by the gravitational force and the force of the gases that surround it. There’s a possibility that starts may collapse or explode if the reaction going on at the centre is too much or too few. But luckily the reactions at the sun and the reactions around it are greatly balanced keeping no chance of collapses. Of all the energy the sun produces, only two billionth of it reaches the earth.

Although it sounds pretty minimal, we’re only able to harness a very small percentage of the energy we receive. Of the energy received, one third goes away through clouds and other gases, while 40% warms the earth and 25% runs the water cycle, the winds and ocean uses another 1% and 0.023% is used by the plants for photosynthesis.

In short, this is the process of production of energy by the sun, energy is later on trapped by the solar panels to convert the solar energy to chemical and electrical energy.

how solar panels work

How Solar Panels Work: Know It

In the 21st century, a countries efficiency greatly depends on it’s ability to generate power, both sustainably and sufficiently, and with the reservoirs of fossil fuels running out and the environmental jeopardies, the world is desperately looking for sustainable and environment friendly sources of energy, solar power seems like the most feasible option out there.

Solar energy is basically the energy harnessed from the sun, it’s cheaper, effective and environment friendly. Solar panels are used to capture sunlight and convert it to electrical energy for household usage.

how solar panels work

How solar panels work:

An ideal solar panels has layer of silicon cells, a metal frame, a glass casing and various wiring to allow current to flow from the silicon cells. It is connected to an inverter and an electric motor for the energy to convert and distribute.

The sun radiates it’s energy through electromagnetic radiation, this energy is captured by the solar panels, these panels have a layer of silicone, silicone is a non metal (atomic number 14) with the ability to conduct electricity, in this process when sunlight enters the panels, they are set in motion and a flow of current is generated, it’s called “photovoltaic effect”, this effect is the starting of energy production through solar energy.

Afterwards, following the breakdown of electrons, the silicon cells absorb and convert it to direct current (DC). The direct current is afterwards converted to alternating current (AC) current which is supplied to the appliances

Apart from the layer of silicone layers, there is a glass casing that protects the layer of silicone from dusts and dirt. In some solar panels, a coating is given to make it less reflective and thus increasing absorption of sunlight, the more sunlight that can be absorbed, the more electricity will be produced. Under the glass exterior there remains a layer of insulation and a protective back sheet, the insulation layer is important as it prevents the Temperature from increasing, increased temperature will reduce the efficiency drastically, the protective plate is important as it protects the silicon atoms from any damage.

Given the electricity produced in a solar panel is DC current, it needs to be converted to AC current and in this case an inverter is required. The inverter converts the regular DC current to AC which is fit for households and also provide ground fault protection, showing system stats of voltage and current on AC and DC connections. Previously, central inverters used to dominate the solar industry to a great extent, but it had it’s share of jeopardies, if there was an issue with one solar panel, the capacity of the entire solar array would be harmed, but since the  invention of micro inverters, this issue has been resolved to a great extent, now with inverters connected to each solar panels, the electricity quality doesn’t deviate with problems in one solar panel.

Generally, most solar panels are connected to the grid for proper maintenance, in such cases, during inclement weather or lack of sunlight the central grid would provide electricity thus reducing any issues, again if there’s a surplus in the production, it will be sold to the grid and the user will be paid for it. But, one can choose to not connect to the grid if necessary

Basically, this is the process of energy production through solar panels. They are one of the fastest spreading sources of energy and we can only hope that it will get better with time.