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  2. Sunrun - Wikipedia

    en.wikipedia.org/wiki/Sunrun

    Sunrun was co-founded in January 2007 by Lynn Jurich, Ed Fenster, and Nat Kreamer with a business model in which it offered customers either a lease or a Power Purchase Agreement (PPA) business model whereby homeowners paid for electricity usage but did not buy solar panels outright, reducing the initial capital outlay required by the homeowner.

  3. Sun-Earth Day - Wikipedia

    en.wikipedia.org/wiki/Sun-Earth_Day

    Sun-Earth Day is a joint educational program established in 2000 by NASA and ESA. The goal of the program is to popularize the knowledge about the Sun, and the way it influences life on Earth, among students and the public. [1] The day itself is mainly celebrated in the United States near the time of the spring equinox. However, the Sun-Earth ...

  4. List of objects at Lagrange points - Wikipedia

    en.wikipedia.org/wiki/List_of_objects_at...

    Sun–Earth L 1: NASA: Arrived at L 1 in 2004 with fuel for 60 years. Operational as of 2019. [28] Wilkinson Microwave Anisotropy Probe (WMAP) Sun–Earth L 2: NASA: Arrived at L 2 in 2001. Mission ended 2010, [29] then sent to solar orbit outside L 2. [30] Herschel Space Telescope: Sun–Earth L 2: ESA Arrived at L 2 July 2009. Ceased ...

  5. ISEE-1 - Wikipedia

    en.wikipedia.org/wiki/ISEE-1

    ISEE-1 and ISEE-2 satellites at Kennedy Space Center International Sun Earth Explorers Orbits. The purposes of the mission were: (1) to investigate solar-terrestrial relationships at the outermost boundaries of the Earth's magnetosphere, (2) to examine in detail the structure of the solar wind near the Earth and the shock wave that forms the interface between the solar wind and the Earth's ...

  6. How Elon Musk’s solar ambitions fell back to earth

    www.aol.com/finance/elon-musk-solar-ambitions...

    The solar market is heating up. Thanks to a 30% federal income tax credit, soaring energy prices, and often generous feed-in tariffs for selling excess power to utilities, the U.S. residential ...

  7. Space sunshade - Wikipedia

    en.wikipedia.org/wiki/Space_sunshade

    By using the solar radiation pressure on the mirrors as solar sails and tilting them in the right direction, the flyer will be capable of altering its speed and direction to keep in position. [ 12 ] Such a group of sunshades would need to occupy an area of about 3.8 million square kilometers if placed at the L1 point [ 12 ] (see other lower ...