Green Cities

Green Cities™ is designed to advance the business and science of sustainability in a conference format. Conferences promise to deliver impressive, relevant, and interactive experiences to governments and businesses providing tools and resources needed to improve policies, operations, and materials for sustainable decisions that save money, generate jobs, and protect the environment.

Green Cities™ conferences bring together nationally acclaimed leaders in sustainable business and government and provide expert perspective and advice on how the private and public sectors can take advantage of the emerging green opportunities. Programs include interactive and collaborative workshops, best practices case studies, roundtable discussions, and open space technology sessions to continue momentum and build enthusiasm so the community will stay active when the event ends.

On behalf of the Green Cities™ team at Seven-Star, Inc. We invite you consider hosting a Green Cities™ event in your area and appreciate your commitment to making your community more sustainable.

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GREEN DESIGN IS GOOD DESIGN – INHABITAT.COM is a weblog devoted to the future of design, tracking the innovations in technology, practices and materials that are pushing architecture and home design towards a smarter and more sustainable future.

GOOD DESIGN IS GREEN DESIGN is a weblog devoted to the future of design, tracking the innovations in technology, practices and materials that are pushing architecture and home design towards a smarter and more sustainable future.

With an interest in design innovations that enhance sustainability, efficiency, and interactivity in the home, Inhabitat’s attention is focused on objects and spaces that are eco-friendly, multi-purpose, modular, and/or interactive. We believe that good design balances substance with style. We are frustrated by the fact that a lot of what we see being touted as “good design” in magazines and at stores is all style and no substance. A lot of contemporary design merely imitates the classic Modernist aesthetic without any of the idealistic social agenda that made Modernism such a groundbreaking movement back in the early 20th Century. The flip side to this is that oftentimes real technological innovations – the ones which will eventually change the way we live our lives – are often not packaged into enough of a stylish aesthetic to move beyond niche circles and crossover into mainstream popular taste.

Likewise, we are frustrated at seeing an emerging category called “Green Design” – as if sustainability is somehow separate from good design in general. We believe that all design should be inherently “Green”. Good design is not about color, style or trends – but instead about thoughtfully considering the user, the experience, the social context and the impact of an object on the surrounding environment. No design can be considered good design unless it at least attempts to address some of these concerns.

We believe in the original modernist ideology that form and function are intertwined in design. Style and substance are not mutually exclusive, and Inhabitat is here to prove it!

Vertical Axis Wind Turbines

Vertical Axis Wind Turbines

Vertical Axis Wind Turbines

Concepts Gallery – Aerotecture Style

Energy Saving Now!

  • Savonius Vertical Axis Wind Turbine. (SVAWT)
  • Savonius Vertical Axis Wind Turbine

    Savonius Vertical Axis Wind Turbine

  • An early style is generally called a Savonius Rotor. The spinning part of a weatherman’s wind speed device (anemometer) is a Savonius Rotor. Sideways mounted cups catch the wind and cause the vertical shaft to spin. A Savonius Rotor has an advantage. It works equally well with wind from any direction. Savonius rotor have efficiencies as high as around 30%, It is common and popular with home builders, because of its aerodynamic simplicity and that it does not need considerations of wind directions.
  • Darrieus Vertical Axis Wind Turbine. (DVAWT)
  • Darrieus wind turbine

    Darrieus wind turbine

  • A very sophisticated cross-wind-axis turbine is the Darrieus Rotor. This design looks something like an egg-beater, with usually either two or three curved airfoils. This design is technically called a high-tip-speed cross-wind-axis turbine. The airfoils and the high airfoil velocities allows this style to have efficiencies as high as around 35%, over a fairly wide range of wind speeds. It is suitable for mass production and is the best choice of VAWT. The aerodynamic design is more complicated, but is easy when it is once in mass production.
  • Windmill Horizontal Axis Wind Turbine Wind Mill Horizontal Axis Wind Turbine. (WMHAWT)
    Windmill Horizontal Axis Wind Turbine
  • Early version of this wind turbines, was the Dutch-style windmill, which was used primarily for milling grain for farms. Why it is so closely identified with The Netherlands, is the very large number of such wind turbines that was used there, for the purpose of serving as water pumps in the countries land recuperation from the sea. Its extremes of performance were of little importance, as were its low efficiency in converting the energy in the wind to useful work. More important was the utilization of renewable energy, easy design, robustness and suitability for repetition. Its low efficiency does exclude this type of turbines.
  • Propeller type Horizontal Axis Wind Turbine. (PHAWT)
    The traditional Propeller style is what is called a high-tip-speed wind-axis turbine. Because of the high tip speed, the theoretical efficiency can be higher, around 45%. This higher efficiency probably explains the usage of Propeller-style turbines on large wind farms. This is the best and also most common choice for HAWT.
  • Lightning GT – The World’s First Green Supercar?

    By Chuck Squatriglia March 03, 2008 | 3:45:45 PMCategories: Electric Vehicles

    The all-electric Lightning GT might just be the world’s first green supercar. It’s as clean as the Tesla Roadster, as quick as the Porsche 911 GT3 RS and as pricey as the Lamborghini Murcielago LP640.

    The Lightning Motor Co. is Britain’s equivalent to Tesla Motors — a small company that believes electric vehicles are the future and the best way to sell them is to make them as fast as they are sexy.

    “Without a significant positive shift in perception,” the company says, “electric motoring will remain a large compromise in the eyes of driving enthusiasts and therefore fail to impress the masses.”

    The Lightning is impressive indeed.

    The company says four in-wheel motors generate 553 lb-ft of torque — that’s about as much as the tire-shredding Dodge Viper SRT produces — and 120 kilowatts apiece (for a combined total of about 643 horsepower, putting it in the same ballpark as the Corvette ZR1). Lightning claims the car will do 0 to 60 in 4.0 seconds and hit a top speed of 130 mph. Range is 250 miles.

    The car features an aluminum honeycomb chassis, carbon-kevlar bodywork, regenerative braking and 36 kilowatt nano lithium titanate battery the company says will charge in just 10 minutes and maintain 85 percent capacity after 15,000 charges. Look for a full slate of features, from anti-lock braking and traction control to air conditioning and leather.

    What’s all this speed and luxury cost? Almost $300,000.

    Lightning seems serious about building the car. It’s spent the past two years refining the design and lining up suppliers like Altairnano and PML Flightlink to provide the batteries and motors, respectively. Altairnano’s Nanosafe batteries power the world’s fastest EV dragster, and Volvo is using PML’s Hi-Pa drive wheel motors in its ReCharge plug-in hybrid concept, so there’s no question the hardware works. But as Tesla has shown, building a car from scratch is no easy feat, and Lightning’s got its work cut out for it.

    PowerPedia Encyclopedia

    PowerPedia is an encyclopedia that the comunity shares, building it together, maintaining it, fine-tuning the information to become the best repository available on alternative energy subjects.

    Scientists and inventors
    Nikola Tesla
    One of the most brilliant inventors of history and was of an unusual intellectual vision and is affectionately referred to as the “Father of Free Energy“.
    Viktor Schauberger
    (1885 – 1958) Founder of implosion technology. Studied the phenomena of the fluidic vortices
    Eugene Mallove
    One of Cold Fusion’s champion and was murdered.
    Science and technology