Elithis Tower: The World’s First Energy Positive Office Building

by , 08/09/11

elithis tower, charpentier, energy positive, france, sustainable design, green design, green office, sustainable architecture, green architecture, world's first energy positive office

The tower, which was originally a theoretical challenge initiated by Thierry Bievre, General Director of Elithis Engineering, is made of wood and recycled insulation. Elithis Tower also houses 330 rooftop solar panels and a solar shield to remove excess heat while allowing natural light to filter in. At the same time, emissions from the office are recovered and reused within the Tower.

Elithis Engineering doesn’t want its energy efficiency feat to go unnoticed by workers in the building, so the company designed a public sign that shows off daily energy consumption, courtesy of 1,600 energy and emissions-analyzing sensors. Perhaps best of all, the 54,000 square foot, 10 story building was relatively cheap to construct, costing just $10 million. With a price comparable to that of a traditionally-built structure, Elithis Tower is leading the way in affordable green building.

+ Arte Charpentier Architects

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  1. Weekly Round-up: August... August 29, 2014 at 11:41 pm

    […] Positive Energy. This office building is the first to produce more energy than it uses. […]

  2. EnGrad August 18, 2011 at 8:51 am

    Now what would make is sustainable is making sure that those 330 modules get properly recycled after their end lifetime.

    I wish they mentioned what system they are using to heat the system and what kind of energy storage system is used.

  3. konsyltacii August 12, 2011 at 3:08 am


    The project is interesting. However, the project, in my opinion, is desirable to supplement. Buildings must be built so that it is a complex solution of many problems instead of solving one or two problems without significant additional construction costs. This project, in my opinion, desirable to supplement the three low cost and developed earlier systems that allow the building to get a full independent power supply. Additions to the project are low-cost and is energy environmentally friendly.


    Проект интересный. Однако проект, по моему мнению, желательно дополнить. Здания нужно строить так, чтобы было комплексное решение многих задач вместо решения одной или двух задач без существенных дополнительных затрат на строительство. В данный проект, по моему мнению, желательно внести еще 3 недорогих давно разработанных дополнения, которые позволят выйти зданию на полное самостоятельное энергообеспечение. Дополнения в проект недорогие и дополнительная энергия является экологически чистой.

  4. animesh December 1, 2009 at 4:06 am

    can i know of what materials the solar shield is made..?

  5. Mooij October 15, 2009 at 4:01 am

    What is the LEED or BREEAM score of this buildiing, being energy postitive?

  6. xaviermn October 8, 2009 at 1:32 am

    Very creative… afterall an environmently frendly building (with 330 rooftop solar panels!) need not be clumsy and ugly.

  7. haigek October 7, 2009 at 9:00 am

    Now they need to get their “green display” on the web. Keeping it locked up in the lobby of the building makes no sense.

  8. heidikins October 7, 2009 at 2:33 am

    How do the carbon emissions from the building rate, either in relation to buildings of similar size built recently or in absolute terms? That question is probably too vague, but I’m sure any answer will at least make me think!

    What is the major use of wood in the building? Is wood used only for the south-facing shield-facade?

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