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Water water everywhere and not a drop to drink (part 1)

the human body weight, needs to be topped up on a regular basis and we cannot go without it for more than about week. As well as drinking it, we also use water for cooking and sanitation, not to mention industrial processes. Yet despite water being essential to our survival, more often than not in the West, we treat it with distain. A fact reflected in its low price (compared to petrol or electricity -- things we may be addicted to but can live without?) and how the developed world fritters it away (you may leave the kitchen tap running into an unplugged sink at home but you would not pour petrol from the station pump down the drain, right?).

What makes matters worse in terms of our taking water for granted, is that despite 70% of the Earth’s surface being covered by water, only 2.5% of the total volume is freshwater resources and fit for human consumption. Coupled with the facts from the WBCSD and FAO that in 60% of European cities with more than 100,000 people, groundwater is being used at a faster rate than it can be replenished, by 2025, 1,800 million people will be living in countries or regions with absolute water scarcity, and two thirds of the world population could be under stress conditions.

Massive Sunbelt Potential for Photovoltaics, especially in China (part 3)

Also, in China’s 12th Five Year Plan (2011-2015), the renewable energy (green energy, alternative power) sector has been earmarked as one of the 7 emerging strategic industries. China views the green economy as the growth engine of this century and the only way to bring China to prosper as a nation and tackle the key challenges of the 21st century.

Photovoltaics (PV) opportunity

the world's largest building powered by solar energy reduce energy consumption up to 88%

The world's largest building powered by solar power, is located in Shandong, China. The construction area of this building is 75,000 square meter.

Hot water supply, heating, cooling powered by solar energy, and photovoltaic power generation with electric grid are firstly applied in the building in the world.
 

largest building powered by solar energy

Solar Power in Bulgaria

 

There are many old solar panel installations in Bulgaria, especially along the Black Sea coast and due to the growth and transformation of the region due to tourism; the Government is investigating ways to encourage home owners and business users to take advantage of these installations. Many of these systems have been left in a poor neglected state and have been unused for an extended period of time. Even though government incentives are now available for solar installations, the country’s financial institutions have maintained a very strict lending criterion. This rules out a high percentage of the countries home-owners due to the documented financial problems within the country.

This financial situation is one of the major reasons why the Solar Energy market has not looked so favorable in Bulgaria even though parts of Bulgaria do have a climate which ideally lends itself to the solar panel market. With the cost of rejuvenating the present solar panel projects within the country it is estimated that the period of time required to recoup the initial investment for an average size solar system would take approximately 8 years. Together with the financial limitations many investors are reluctant to get involved and find alternative funding methods. The costs of the newer projects are relatively cheap and the average cost of a system is $250 to $290 per square meter which is comparatively low due to the availability and the present technology so this adds to the investment capital making the older project cost prohibitive.

How can we use solar energy in our daily life?

How can we use solar energy in our daily life? May you list your experiences with solar energy applications below? Can you teach us your usage of solar energy in daily life? Your experience listed here surely will save the environment.

One common solar energy application is to use solar power to heat your hot water. Generally this form is solar water heater. Solar water heaters are common in some areas of Chongqing, Hubei Province in China.

Solar powered garden lights may be common in Europe, North America. Maybe you have used or are using these solar powered lights.
solar garden light

Some may use the large solar panels mounted on roofs of their home, thus generate electricity for home.

China Renewable Energy Market Outlook

China has made great strides in the last two decades in bringing prosperity to a greater share of its people. Older state-run industries are being replaced by a dynamic new economy. Unfortunately, this economy requires a huge engine to run it, and prosperity has brought with it a huge cost in the form of air pollution - including high levels of particulates, sulphur dioxide, nitrogen oxides, plus increasing emissions of carbon dioxide.

In the last couple of years, the burning of coal produced over two-thirds of the primary energy consumed in China. Even with improvements in end-use energy efficiency, energy demand continues to grow and so does the air pollution.

In China, pollution is causing serious health problems, crop damage and acid rain, all of which are taking a significant social and economic toll.

Most opposition to renewable energy development in China comes from those who are concerned about the higher capital cost of the generation capacity. While a concerted renewables programme can substantially reduce cost through competition and economies-of-scale, there are several additional benefits that can ultimately affect cost. Renewable energy development makes sense from a number of points of view, particularly with regards to energy security, international competition, employment benefits, plus environmental and health improvements.

China has chosen wind power as an important alternative source in order to rebalance its energy mix, combat global warming and ensure energy security. Supportive policies and measures have also been introduced.
 

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