Because we own an old house we heat it with wood. We have a wood-fired heating system.
Picture 1: Oven
The wood we need is from our own forest. My father fells [1] the trees and cut them into pieces of firewood which fit in our oven.More...
Run-of-river power plants are built on rivers and use the energy of water flowing down a gradient. In most cases, this is only a few meters, but since several hundred tons of water can flow down per second, run-of-river power stations can have a large capacity of several megawatts (MW). The water flow spins turbines, which converts kinetic rotational energy to electrical energy.1
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Definition:
An oil is any non-polar chemical substance that is a viscous liquid at room temperature and is both hydrophobic (does not mix with water, literally "water-shy") and lipophilic (mixes with other oils, literally "fat-loving").
Oils have a high carbon and hydrogen content and are usually flammable and surface active. Most oils are unsaturated lipids that are liquid at room temperature.
Use:
The consumption of oil is still rising. In 2017, it was almost 100 million barrels (159 litres) per day worldwide. For years, road transport has accounted for the largest share of consumption: worldwide, it was 42 percent in 2014, in the EU consumption is even slightly higher. Air transport and maritime shipping also account for more than ten percent. Crude oil is playing an ever smaller role in heating buildings; this is being replaced by electricity or other energy options.
Consume of oil:
Oil has historically been the world's most used energy source. The US has been the biggest oil consumer for the past two decades followed by China, which has been consuming increasingly more oil, especially gasoline. Oil is particularly useful as a fuel because of its high energy density.
Crude oil is processed at petroleum refineries to make many different products, such as motor gasoline, distillate fuel oil, hydrocarbon gas liquids, and jet fuel. More than two-thirds of finished petroleum products consumed in the United States are used in the transportation sector. 33
Wind is the result of the sun's uneven heating of the atmosphere.
Warm air expands and rises, and cool air contracts and sinks.
This movement of the air is called Wind. [1]
Wind turbine [2]
A wind turbine with a rotor blowing wind into energy. The wind causes the rotor to rotate - the "rotational energy" is then converted into electricity with the help of a generator, similar to a bicycle dynamo. From there, the electrical energy goes into the power grid. The height of the wind turbine is very important. The taller the turbine, the more evenly the wind blows and the more electricity can be generated. More...
I live in an apartment building, which is heated geothermal. It's renewable but rather expensive to install. It's also hard to keep the water warm, because the maximum heat reached is lower compared to other energy carriers.
(Teaser) For Switzerland to become climate neutral, there’s no way around electric mobility. But to get e-​cars going, the public must push for charging stations where people live, argues Anthony Patt.
One of the many changes needed for Switzerland to eliminate greenhouse gas emissions is to make its road mobility electric, with sales on new internal combustion engine (ICE) vehicles to cease by 2030 or soon after. More...
Link to the site (worldometers.info)
Gas heating systems have been around for a very long time and have been used for years. Natural gas is often used.
As soon as a building is too cold, this is reported to the boilers. There, gas burns. This produces heat, which is then transferred to the radiators with water. The radiators warm the rooms and then the cold water flows back and it is heated again.
There are many sustainable options (in German, heise.de):
Flüssige Luft als Energiespeicher (Liquid air as energy storage)
Fusionsenergie: Der Joker im Energiepoker (Fusion Energy: The Joker in the Energy Poker)
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"Water is life and clean water means health." - Audrey Hepburn
For a city to be clean and its people to be healthy, the problems of pollution and unsanitary living conditions have to be solved. This preponderantly calls for a city to have a well maintained and organized waste management, good air quality and also, a developed drainage system.
The absence of a constructive drainage system in a city can be an ample reason for flooding. Stagnant water in the cities increases chances of unfavorable smell in the atmosphere, release of toxic materials, pollution and health risks. All these can lead to unhygienic, unsanitary living standards in the long run.
So proper sustainable water drainage in cities can ultimately ensure a clean and safe surrounding and help to buckle down wider issues such as pollution and sanitation.
Thank you!
Looking forward to your comments.
Team - Devanarayan, Vamika Giridhar, Johanna Christy, Ananya Reji and Maya Ma'am.
Yes it can. Electricity can be generated by:More...