Solar systems
The definition passive solar systems refers to the systems in which solar energy is used directly. For example greenhouses are glass structures that allow the Sun to enter, but do not let the heat escape. In this way they are able to maintain temperatures inside the structure that are higher than those outside. Then there are the solar distillers, in which in a closed space, covered by transparent panels that are exposed to the Sun, sea water evaporates and condenses and forms water that has no salts, and therefore that can be reutilised.
In the active solar systems instead, solar energy is collected and transformed into thermal or electric energy before it is utilized. This type of system includes solar thermal power systems, solar concentrator systems used for the production of thermal energy and solar photovoltaic panels for the production of electric energy. The best technologies also enable the cogeneration of different types of energy, and it is possible to accumulate thermal energy in many ways and for different uses.
Special reports
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13 May 2013
Small steps, great footprints
Have you ever wondered how much space is taken up by an apple or a steak?...
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27 September 2012
Over 7 billion people on Earth
Demographers have estimated that on 31 October 2011 world population...
18 January 2016
Ten years of oil demand
Eni has recently published the 14th edition of the 2015 World Oil and Gas Review...
4 November 2009
Ecological house
At present, it is more and more difficult to assure the comfort standard...
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10 September 2020
A simple and ingenious invention
There are objects so simple and ordinary that we forget their existence when we don't need them. Their presence is…
17 March 2020
Energy and renewable sources: what is the current status?
The unstoppable growth of renewable sources continues…
23 September 2019
Everything is transformed
At primary school we learn that nothing is created and nothing is destroyed. We have heard this phrase so many…
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13 May 2013
Small steps, great footprints
Have you ever wondered how much space is taken up by an apple or a steak?...
-
27 September 2012
Over 7 billion people on Earth
Demographers have estimated that on 31 October 2011 world population...
-
18 January 2016
Ten years of oil demand
Eni has recently published the 14th edition of the 2015 World Oil and Gas Review...
4 November 2009
Ecological house
At present, it is more and more difficult to assure the comfort standard...
-
13 May 2013
Small steps, great footprints
Have you ever wondered how much space is taken up by an apple or a steak?...
From the Multimedia section
Facts
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Bio-climatic architecture
Solar energy is playing a vital role with reference to bioclimatic architecture...
The photovoltaic train
In Italy the PVTRAIN project by Trenitalia (co-financed by the European Union) plans...
The plant of Almeria
In the Tabernas desert, 30 km north-east of the Andalusia town of Almeria (Spain)...
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Italian offshore wind farm
The first Italian wind farm will be installed in the waters of the Strait of Otranto...
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An artificial geyser
Electric and thermal power produced from geothermal energy depend on the existence of underground infiltrations...
A hydrogen house
In Settimo, a municipality close to Turin, the first Unité d’Abitation has been created...
Hydrogen from biomass
Hydrogen is an energy carrier that allows to generate energy in an environmentally sustainable way...
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16 May 2011
Bio-climatic architecture
Solar energy is playing a vital role with reference to bioclimatic architecture...
The photovoltaic train
In Italy the PVTRAIN project by Trenitalia (co-financed by the European Union) plans...
-
The plant of Almeria
In the Tabernas desert, 30 km north-east of the Andalusia town of Almeria (Spain)...
-
Italian offshore wind farm
The first Italian wind farm will be installed in the waters of the Strait of Otranto...
-
16 May 2011
Bio-climatic architecture
Solar energy is playing a vital role with reference to bioclimatic architecture...
-
The photovoltaic train
In Italy the PVTRAIN project by Trenitalia (co-financed by the European Union) plans...
-
The plant of Almeria
In the Tabernas desert, 30 km north-east of the Andalusia town of Almeria (Spain)...