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Anders Bekeken

Dandelion Geothermal Heating, Geothermal Cooling and Hot Water System by Google

Geschreven op 26-7-2017 - Erik van Erne. Geplaatst in Energie en Besparing Facebooktwitterredditpinterestlinkedintumblrmail

Google has set up an independent business outside the Alphabet umbrella called Dandelion. The new company was created to promote new geothermal system technology. 

Dandelion replaces your existing heating, cooling and hot water equipment with a geothermal system that harvests energy from under your yard. A geothermal system uses a heat pump and underground pipes to move heat between the earth and your home — it’s the most efficient way to heat and cool your home.

Geothermal heating and cooling taps into a renewable resource that never runs out and is over 3 times more efficient than conventional heating and cooling systems. Dandelion’s geothermal system is quiet, clean, and includes a smart thermostat so you can keep your home comfortable year-round.

Dandelion’s mission is to make it easy and affordable to heat and cool every home with the renewable energy in the ground: geothermal energy. Originally conceived at X, Alphabet’s innovation lab, Dandelion is now an independent company offering geothermal heating and cooling systems to homeowners, starting in the Northeastern US.

See also: Google investeert 12,5 miljoen in geothermische energie – Google Stapt in Energiesector RE < C: Google Investeert $168 Miljoen in BrightSource Solar Project – Google investeert weer in zonne-energie ! – Google PowerMeter geeft inzicht in energieverbruik – Eric Schmidt, CEO Google, at Bloomberg on the Future of Technology – Video Google sink billions in offshore wind: The Atlantic Wind Connection Transmission Backbone

2 Reacties

  1. Erik van Erne zegt:

    23 januari 2021 om 14:29 | Permalink

    Alphabet Shuts Down Loon Internet Balloon Company

    Google’s parent firm, Alphabet, is done exploring the idea of using a fleet of balloons to beam high-speed internet in remote parts of the world.

    The firm said on Thursday evening that it was winding down Loon, a nine-year-old project and a two-and-a-half-year-old spin-off firm, after failing to find a sustainable business model and partners for one of its most prominent moonshot projects.

    The demise of Loon, which assumed the spotlight after the project helped restore cell services knocked out by a hurricane in Puerto Rico, comes a year after the Android-maker ended Google Station, its other major connectivity effort to bring internet to the next billion users.

  2. Erik van Erne zegt:

    18 februari 2021 om 21:45 | Permalink

    Dandelion Raises $30M to Scale Up Home Geothermal Energy

    Breakthrough Energy Ventures leads round for the Google spinout’s software-enabled ground-source heat pump technology. There’s a lot of energy underneath homes — if reasonably priced technology can be scaled up to tap its potential. A U.S. Department of Energy study indicates that geothermal heat pumps, which capture the steady temperatures of underground air to heat homes in winter and cool them in summer, could cost-effectively replace fossil-fuel- and electric-powered heating and air conditioning in up to 28 million homes.

    Dandelion Energy hasn’t gotten nearly to that scale yet. Since its 2017 spinout from Google parent company Alphabet’s X “moonshot factory” R&D organization, the company has installed about 500 of its geothermal heating and cooling systems in New York and Connecticut.

    But CEO Michael Sachse says Dandelion’s combination of purpose-built equipment and software can drastically reduce the cost and increase the efficiency of residential ground-source heat pumps. That could break open a market where upfront cost and reliability are key barriers to mass adoption.

    “Our goal is to get to 10,000 homes a year,” he said. On Wednesday, Dandelion raised a $30 million Series B round led by Bill Gates-founded Breakthrough Energy Ventures to expand on those ambitions.

    The round was joined by previous investors GV (formerly Google Ventures), New Enterprise Associates, Collaborative Fund, Building Ventures, Catchlight Ventures, GroundUp and major U.S. homebuilder Lennar Corp., and brings the Peekskill, New York-based company’s total funding to $65 million.

    The new funding will allow Dandelion to invest in its product development and expand its geographic reach in New York, Connecticut and Massachusetts, he said, where many residential fuel oil or natural-gas heating systems are ripe for replacement with geothermal systems.

    The long-term energy savings of making that switch can pay back the upfront installation and equipment costs within five to seven years, he said, all while cutting carbon emissions by as much as 80 percent by eliminating reliance on fossil fuels.

    Heat pumps will be a key technology for decarbonizing the roughly one-third of global energy consumption that goes toward heating buildings. About three-quarters of U.S. households use natural gas or oil for heating, and most of the remainder use older, less efficient electric resistance heating.

    Heat pumps that tap above-ground air to moderate indoor temperatures are suitable for more moderate climates. But air-source heat pumps are less efficient where outdoor temperatures drop below freezing since they need additional energy input to heat incoming air in those conditions.

    By drilling holes about 300 to 500 feet underground, ground-source heat pumps can tap air at much more stable temperatures. This isn’t a new concept: “There are a lot of terrific ground-source heat pumps out there; they’ll heat your home and cool your home comfortably,” Sachse said. “We’ve been focused on providing that same level of comfort at a lower price point.”

    Smaller footprint, smarter design and operations
    To hit those price points, “we’ve oriented the company around three core theses,” he said. “One is that data analysis can really help solve this problem. The ground is not uniform, and understanding how heat is going to be exchanged, and how that varies from place to place, is really valuable.”

    In 2018, Dandelion acquired Geo-Connections, a provider of software that analyzes a multitude of factors that go into designing and installing geothermal systems, from the geology of the earth underneath homes to the energy envelope of the buildings. That kind of insight is a critical piece to designing the “loop,” the pipe circuit that captures ambient underground temperatures, in a way that ensures it will provide the needed heating and cooling capacity at the optimal price, he said.

    Second, “we need to use smaller equipment that fits within a typical suburban yard,” he said. Dandelion has shrunk the size and weight of its drilling rigs to about the size of a forklift, rather than the semi-trailer-sized drilling rigs commonly used in larger commercial and industrial geothermal heat pump projects. That expands the universe of homes that Dandelion can serve and reduces the cost of each installation, according to Sachse.

    Third, “we’ve seen a lot of opportunity with heat pumps themselves,” he said. “We use a proprietary heat pump that is not only cheaper but also allows us to monitor performance” to ensure that the systems are delivering the temperatures homeowners want and to catch and fix potential breakdowns in pumps, air filters and other parts of the system.

    “That helps us with that first problem of using data to design efficient systems” he added. Data from Dandelion’s earliest projects is being used to refine its models for future prospective customers, which “allows us to give customers a firm price earlier in the process.”

    That kind of data is critical to inform Dandelion’s financing offerings, which include no-money-down installation and monthly charges of as little as $150. That financing has to pencil out against a cost of about $20,000 to $25,000 for an installed system — a cost that builds in the range of state, local and utility rebates available in the territories it serves, as well as the 10 percent federal Investment Tax Credit now available for geothermal systems through 2023.

    “We’re very interested in a longer-term extension of the Investment Tax Credit,” Sachse said. The omnibus spending and COVID-19 relief package passed by Congress in December extends the ITC for solar and offshore wind projects, and “we’d love to see the [ITC] treat geothermal and other new technologies in the same way.”

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