The heart of Manhattan will soon going to be green, the Empire States’s  is set to go green leading consulting, designer, non-profit and constructions partners like the

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, Jones Lang LaSalle and the Rocky Mountain Institute has now joined hands to renovate the icon of America.

They have done various analyses and modeling programme and set a $100 million to revamp the Empire State in spite of the great economic crisis. They have plan to reduce the building’s energy consumption by 38%, that would save about $4.4 million a year.

This 102-story beauty built during the great depression will be sustainable building after its makeover and will join the other Green architectural marvels. The renovation process will be on its HVAC system, triple glazed windows and other renovation that includes occupant’s sensor control system, tenant demand ventilation control. The renovation will also include electronic readouts in various part of the building to bring awareness to the people about the energy consumption.

Apart from the readouts energy efficiency will be improved by the refurbishing the 6500 thermopane glass windows and creating triple-glazed insulated panels with new components this will help in reducing the heat loss and bring out the efficiency to the interior perimeter of the building. This will also help to reduce summer heat load and winter heat loss.

The daylight controls and plug load occupancy sensors will probably reduce the electricity cost. The working people will be allowed to monitor and operate in their part of the building via internet in order to save energy. By this renovation the Empire State Building will able to reduce it CO2 which is about 105000 metric tones a year.

The process of will not be a easy task to apply to a building which has about 6500 windows, 73 elevator and about 2.6 million square feet of floor space. Even with all changes the light at the top will not have any change.

The renovation work has already begun and it is expected to be completed by the end of 2010. The work at tenant space will be completed in successive year. Once completed the building is able to qualify for the Gold certification from Leadership in Energy and Environmental Design (LEED) but the group will not apply for the certification. The build will become energy efficient and will also motivate other buildings to revamp to achieve the energy efficiency. This building will be the retrofit the New York city and viewed as symbol of progress as it was perceived when it was originally built in 1931.