For the last few decades, houses with the solar panel on the rooftop have gone from oddity to ordinary. Now days you can find solar panels almost in every depot for home improvement, which is the great thing especially having in mind that the people these days can mount solar panels by themselves. Truth to be told, technology has been available for more decades, even since the 1950s when passive solar heating systems was used to turn solar energy into heat as an alternative of electricity. From the first days NASA has also been using solar-powered satellites, but it wasn’t easy to get active solar systems in the common housing market. Main reason was expensive technology of photovoltaic cells which convert sunlight directly into electricity.
The reimbursements of housing solar power are noticeable: Power from the sun is eternal; it offer clean energy with no harmful gas emissions; and it can save a lot of money for the people with their electric bills. But beside these factors there are few others to be consider, such as position of the house, and of course overpriced costs of installing solar panel.
Solar panels are without a doubt the future of home-energy creation. Even they are maybe a little expensive to buy, but the truth is that once you’ve acquired the panels and installed them, the money you will put aside in the long period will turn out to be exponentially superior as energy prices boost.
Like any organism, our planet works as a whole, as one system. One of those systems that help the Earth works properly is the climate system. People are still in a struggle how to completely understand this system. But one is certain, each human action affects the condition of the climate. Each change that is made by man has a lot of consequences, such as global warming.
The major cause of global warming is a gas that naturally occurs – carbon dioxide (CO2). For the past half a million years, the level of carbon dioxide in ice cores have remained between 180 and 300 parts per million. On the other side, the level of C02 in recent years has risen sharply to at least 380 parts per million. In the past, these natural emissions have been balanced by absorptions of the nature, such as by photosynthesis. However, these days there is more emission of CO2 into the atmosphere than it can be absorbed and this is the main problem.
And why it is a problem? Well, because the temperature of the planet increases and this affects every part of the planet and this does not only affects the lives of people, but also the wildlife. A lots of species face potential extinction. Regarding to the human population, a significant increase of social and political problems can be seen. Furthermore, migration increases because of the climate changes along with water and food shortages in some regions.
Although the pace of contemporary life-style can not be slowed down completely, some modifications in behavior can affect the rate of climate changes. The rate of CO2 emissions can be reduced by new, low carbon technologies. More importantly, the changes have to involve everyone and start at an individual level.
Nowadays, it is very important to think about energy savings in many areas of life. Especially about saving of electricity. We know that the price of electricity constantly grows up and becomes more expensive, but despite of that a lot of people use electricity as a main source of heating. The proportion of those who use electric heating is approximately 50%.
We should not be conducted by some wrong theory that all the kinds of heaters are the same. At first, they have no the same capacity, consumption and more importantly identical efficiency. The level of the efficiency of some radiators are determined by the advance of materials, tolerances, technology and moreover, the sophisticated electronics, and not just one single item but all of them coming together.
How we can achieve maximum comfort using only minimum of energy? How we can explain what is an economy radiator?
Gossiping for solutions about the usability of renewable energy resources, we find new, innovative ideas. One of them is the exploitation of wave energy. There are many good places for wave energy exploitation, but according to World Energy Council the best locations can be found in Australia, specifically on Australia’s southern coast. Scientists have concluded that there can be generated five times more electricity than Australia’s current consumption. Dr Mark Hemer from Centre for Australian Weather and Climate Research’s says: “If we look at the sustained energy resource along the southern coastline – and we’re looking between Geraldton in West Australia and southern tip of Tasmania – that has a sustained wave energy resource of about five times larger than Australia’s present day electricity consumption”.
All around the world, there is more and more attention that is paid to the energy consumption, energy sources and contemporary energy issues. Thus, in Europe, there is a plan how to approach all the required changes. This energy strategy of The European Commission requires that 20 per cent of all energy consumed within the EU should be from renewable sources by 2020. It is estimated that 12 per cent of overall energy use should be supplied by offshore wind and member states are required to implement sufficient grid capacity to accept wind power.
The European Union has also constricted legislation on the internal electricity markets, and imposes that Transmission System Operators (TSO’s) comply bi-annual transmission development plans. The program is intended to create a single electricity market across Europe and the aim is to achieve improved system operation, fair access for renewable generation systems, and greater cooperation between TSO’s.
By 2050, these long term energy strategy targets will lead towards an 80-95% reduction in greenhouse gas emissions. The new development of the European grid infrastructure has to consider the current issues of enabling connection to wind power and delivering electricity from offshore wind to immediate targets.
The requirements for a new European infrastructure
In addition to the integration of renewable energy, Europe can achieve several benefits from a complete and continental wide electricity network structure. The cost of the move towards a carbon free society for individual countries will be reduced by a fully interconnected grid utilizing smart technology. This can immensely develop and improve the security of service for consumers, and guarantee efficient use and lower prices by the routing of energy to specific areas of demand. Also, it also rises competition in the energy market in Europe.
We really can not ignore anymore all the innovations that scientists have found in order to encourage the use of alternative energy solutions. There are possibilities to live in energy efficient houses, to drive vehicles that use less fuel and less pollute, to harness the sun, wind, heat, water.. even to harness plants! Yes, flowers, fruit or vegetables can in fact create enough electricity to illuminate the garden where those plants grow. It may sound incredible, but the realization of this idea is perfectly possible.
Dutch scientists came up with this idea. There is being led an unusual experiment on the roof of a research institute of the University of Wageningen in the Netherlands. There are 12 plastic containers filled with water and mud in which scientists grow various plants. However, plants are not in the lead role. The significance is in the relation between plants and bacteria that work together. The formula is simple: the plants produce carbon through photosynthesis and roughly 40 per cent of organic matter is carried into the soil where there are many micro-organisms – bacteria and fungi. The biologists have settled so-called bio-battery into the soil. These are two electrodes in which the growth of bacteria can produce electricity.
Sometimes, we can use electricity independently of the electric power grid. We can use generators for the generation of electricity which ensure that most of the essential appliances can be run whenever there is a power outage. There are generators of different wattage capacities and they can be used according to the needs of the individual. The choice of purchasing the right type of the generator depends of different factors like the voltage ratings, wattage capacity, fuel type, fuel efficiency, portability, price, noise level – a really good choice can only be made if you know what to look for.
–Standby generators provide backup power in homes and offices. These generators are permanently installed outside the house or office building, and plugged into the electric circuits or home wiring. They can automatically recognize any disruption in the usual electric supply and then they begin supplying power within a few moments. Standby generators use propane and natural gas, which offer a safe, lasting fuel supply. It is also more environmental friendly than gasoline or diesel fuels. Like any other motor, a generator motor creates heat and needs to be cooled to prevent overheating. These standby generators can be either air-cooled or liquid-cooled and the major difference is that air-cooled systems are louder and not quite as effective. Liquid cooled systems are more expensive but quieter and more dependable.