Extracting Heat From The Earth

Geothermal systems provide consistent indoor temperature and humidity levels, while operating quietly. If you are an environmentalist, geothermal systems reduce the carbon footprint of your home or business by producing heating and cooling on site with the renewable resource of your land.

Researchers want oil and gas drillers to adopt geothermal technology

By Brooks Hays for UPI:  Researchers at the University of North Dakota believe geothermal energy production should be a significant part of America's future energy portfolio.

But to get the industry off the ground, proponents are looking to an industry not normally associated with renewable energy -- gas and oil drillers.

"Oil- and gas-producing sedimentary basins in Colorado, Illinois, Michigan, and North Dakota contain formation waters of a temperature that is adequate for geothermal power production," researchers wrote in their new study on the subject, published this week in the journal Geosphere.

Geothermal energy requires heat, and natural sources of heat lie deep within the ground. Gas and oil drillers have already built the infrastructure to access deep-lying natural resources. Of course, gas and oil drillers want gas and oil, not heat. But in their quest for gas and oil, they get heat nonetheless.  Cont'd...

Duke scientists making algae biofuel more viable

By Teresa Meng for The Chronicle:  A Duke University professor has been awarded a $5.2 million U.S. Department of Energy grant to explore ways of making algae a cost efficient fuel source.
The Duke-led Marine Algae Industrialization Consortium, comprised of both universities and energy companies, aims to lower the cost of algae oil, which can be used in place of fossil fuels. The team is working to identify algae proteins that can be used in protein-based nutritional products in order to make the entire algae farming process more cost-efficient. Zackary Johnson, Arthur P. Kaupe assistant professor of molecular biology in marine science, is the principal investigator of MAGIC and has been researching algae biofuels for eight years.

“The goal of the research is to drive down the cost of algae biofuel by increasing the value of proteins within algae,” Johnson explained.

Johnson and his team at MAGIC are trying to use multiple ways so that algae grown for biofuel extraction can also be sold after oil is extracted from the algae. Proteins in algae could be used for nutritional products such as poultry feed, fish feed or even food for humans. Extracting and selling these proteins would lower the overall production cost of extracting oil from the algae. In the future, algae proteins as food sources might even be a sustainable approach to feed the world.

Algae biofuel has the potential to become a major source of sustainable energy because it can be produced quickly, easily and in high quality, Johnson said.  Cont'd...

Two Explosions a World Apart: From Disaster Comes New Power

How Roys Poyiadjis's and Martua Sitorus's Partnership is Creating the Largest Biofuel Plant in Japan

Algenol to Partner in China to take Climate Action

China Looks to Algenol's Carbon Mitigation Technology to Reduce Rising Global CO2 Levels and Help Combat Climate Change

Balls of DNA Could Fix Geothermal Energy's Biggest Problem

Shara Tonn for Wired.com:  Geothermal Power has the potential to be cheap, reliable, and abundant—running off the heat of the Earth 24 hours a day, seven days a week. That’s especially true thanks to a new generation of home-grown geothermal plants, which don’t run off the steam of natural hot springs and geysers. No need to find those hydrothermal gems; today, geothermal engineers are making their own reservoirs by drilling down into hot rock and pumping in water.

The catch? Engineers can’t see what’s happening underground. Drilling wells in just the right spot can be like playing golf blindfolded: Even if someone faces you in the right direction, you could still hit the ball way off the green. But tiny fragments of DNA dropped into the wells could soon help engineers follow the path of water underground, helping them sink their putts every time.

In a basic geothermal plant set-up, engineers actually have to drill two types of wells. The first kind, which goes down two or three miles, carries cold water down deep, where it fractures the hot rock and creates new paths for water to move. It’s kind of like fracking, but without the chemicals.  Cont'd...

Balls of DNA Could Fix Geothermal Energy's Biggest Problem

Shara Tonn for Wired.com:  Geothermal Power has the potential to be cheap, reliable, and abundant—running off the heat of the Earth 24 hours a day, seven days a week. That’s especially true thanks to a new generation of home-grown geothermal plants, which don’t run off the steam of natural hot springs and geysers. No need to find those hydrothermal gems; today, geothermal engineers are making their own reservoirs by drilling down into hot rock and pumping in water.

The catch? Engineers can’t see what’s happening underground. Drilling wells in just the right spot can be like playing golf blindfolded: Even if someone faces you in the right direction, you could still hit the ball way off the green. But tiny fragments of DNA dropped into the wells could soon help engineers follow the path of water underground, helping them sink their putts every time.

In a basic geothermal plant set-up, engineers actually have to drill two types of wells. The first kind, which goes down two or three miles, carries cold water down deep, where it fractures the hot rock and creates new paths for water to move. It’s kind of like fracking, but without the chemicals.  Cont'd...

Biofuel Production is Complex

Introduction of biofuels is proceeding so quickly, that the environmental risks of biofuel production are being disregarded. Without careful and thorough assessment and regulation, the promise of biofuels may well be delayed.

After Years of Lying Dormant, the Geothermal Market is Ready to Take Off

Though the potential and power of geothermal energy is massive, setting up a large-scale plant to harness this energy is not an easy goal.

Iran is building the Middle East's first geothermal power plant

Iran is building the Middle East’s first geothermal power plant at the foot of an inactive volcanic peak as the country is racing to meet a runaway demand for electricity by its growing population. 

The pilot station in northwestern Meshguin Shahr in the Ardabil province is projected to come on stream in the next two years, putting Iran in the club of two dozen nations with the geothermal power generation capacity.

The 50-megawatt project is in line with Iran’s bid to expand its clean energy mix which is dominated by fossil fuels. Geothermal power is cheaper and more reliable than other renewable energy sources, such as thermal or hydro power.  Cont'd...

How Merthen Manor Heats Family Home And Six Cottages And Saves £20,000 Per Year In Fuel Bills

The biomass district heating system provides heat and hot water to the whole estate throughout the year, predictable fuel bills, income from the renewable heat incentive (RHI), and a 43,000kg reduction in CO2 emissions per year.

The Dark Side of Renewable Energy: Negative Impacts of Renewables on the Environment

What scientists, engineers, companies, and nations expanding their power capacities need to focus on, is implementing solutions that keep negative impacts of renewables in check.

Fact Sheet: President Obama to Announce Historic Carbon Pollution Standards for Power Plants

The Clean Power Plan is a Landmark Action to Protect Public Health, Reduce Energy Bills for Households and Businesses, Create American Jobs, and Bring Clean Power to Communities across the Country

Hillary Clinton is calling for a 700% increase in solar power. Is that realistic?

Brad Plumer for VOX:  In the coming months, Hillary Clinton's campaign is planning to release a series of proposals for dealing with global warming. Her first installment is out Sunday evening, and it calls for a large increase in renewable power.

Specifically, she's proposing to boost the amount of wind, solar, and other renewables so that they provide 33 percent of America's electricity by 2027 — enough to power every home in the country.

Part of her plan would involve accelerating the recent rapid growth of solar installations nationwide. In her proposal, Clinton calls for US solar power to grow 700 percent from current levels.

That sounds like an impossibly large number, but it's not implausible on its face. US solar capacity grew 418 percent between 2010 and 2014 (because it was starting from a small base). So 700 percent growth by 2027 is at least within the realm of possibility. But it would require additional policy changes — and clean energy prices would have to keep dropping.  Cont'd...

Geothermal Heating and Cooling

Geothermal heat pumps are ideal for use in buildings looking to reduce consumption to net zero.

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