If there should be somewhere huge solar towers for electric power generation to happen it should somewhere here — in the south of solar Spain, near to Seville. The commercial thermal solar power station first in Europe — PS 10 — has officially become operational on March, 30th this year. Power of the station erected in Spain, makes 11 megawatt.

Hardly later, in April, 2009, Spaniards have erected the second tower, is more powerful than the first twice — PS 20. The principle of work of towers is simple: the field from set of the mirrors tracing movement of the Sun, collects light and directs a sunlight on tower top, heating up a hydrochloric solution which in turn, gives energy to water, transforming water to steam.

Steam runs on pipes and, finally, twists the turbines connected to electric generators. Thanks to presence of the intermediate heat-carrier — salt weight — towers are capable to accumulate “warmly for emergency”.

In cloudy weather or evening of the turbine are capable to work on the energy kept in the big tanks with hot salt. The capacious storehouse of the fused salt (565 degrees warmed up to temperature on Celsius) can ensure functioning of steam and gas generators within 16 hours after a sunset. So in the summer station generators will not stop neither in the afternoon, nor at night.

Project PS20 has 1,255 mirrors, PS10 — 624 mirrors, the area on 130 sq. m. everyone. PS20 — the world's largest power station, power of 20 megawatt a day, is enough this energy to provide with light, heat and an electricity more than 10,000 houses. Similar towers it is planned to erect also in the southwest USA.

In the middle of financial buildings and inhabited towers the Belgian architect Vincent Callebaut is intended to erect an alternative skyscraper. 132 floor complex will be constructed in the south of Roosevelt Island, symbolising necessity of ecological stability. The main accent of this conceptual design — attempt to create completely a self-sufficient organism which processes energy of the sun, wind, water, and also can make food, in the middle of a megacity.

The metal and glass wings inspired in the image of a dragon, become the house for plants and animals. Thanks to a favorable environment, the good sun and winds, at numerous levels where nutritious soils will be placed, plants will be grown up. External vertical gardens will eat rain water which after use will be mixed with a household waste, after subject to organic processing, for further use in a farm.

In space between wings warm air with which help the premise will be heated in the winter gathers; in the summer natural ventilation, and also evaporations from plants will cool air.

Architectural bureau Kensuke Watanabe Architecture Studio became the author of this project: near to church in the city of Tokorozawa have erected an arch at which top the cross towers.

The construction is called “Cross Tower”, height of a design of 7,8 metres. The tower is made of steel plates by thickness of 28 mm., painted in white colour.

Tower support are directed to a bottom, creating original gate, through which parishioners are included into church.

Building of a 54-storeyed tower in the centre of Los Angeles has ended. Hotels Ritz-Carlton Hotel both Residences and Marriott have opened the doors for visitors in a building designed by bureau Gensler.

Tower building has finished project L.A. LIVE which assumed erection of the whole area for sports and entertainments, more sq.m. half-millions In a complex are located by the total area: TV-studio, restaurants, cafe, cinemas, bowling, clubs, an innovative musical museum.

The first 22 floors of a new tower are given Marriott, four following — to hotel Ritz-Carlton Hotel and all the others, to the top — to premises (Ritz-Carlton Residences). In the bottom building is placed two external "decks", with pools, bars and other services are equipped.

Among green components of the project — the combination has flown down also a colour facade for illumination and heating distribution, system on a water effective utilisation, solar panels on a roof.

“The hotel becomes not only new sight of the centre, but also will make the huge contribution to our economy”, — the mayor of Los Angeles Antonio Villaraigosa has informed. “It is the real engine of progress which will create thousand new workplaces and will help to return activity to our city, having rendered service of world level for a world city.”