sustainable

Super Solar Storage to Revolutionize Sustainable Energy

- Adam Clare 1 Comment

Getting renewable energy is the easy part whereas storing it is the hard part. Battery technology has not kept pace with the green technology field. That is until a team at MIT figure out how to store sweet savoury solar energy efficiently.

Until now, solar power has been a daytime-only energy source, because storing extra solar energy for later use is prohibitively expensive and grossly inefficient. With today’s announcement, MIT researchers have hit upon a simple, inexpensive, highly efficient process for storing solar energy.

Requiring nothing but abundant, non-toxic natural materials, this discovery could unlock the most potent, carbon-free energy source of all: the sun. “This is the nirvana of what we’ve been talking about for years,” said MIT’s Daniel Nocera, the Henry Dreyfus Professor of Energy at MIT and senior author of a paper describing the work in the July 31 issue of Science. “Solar power has always been a limited, far-off solution. Now we can seriously think about solar power as unlimited and soon.”

Inspired by the photosynthesis performed by plants, Nocera and Matthew Kanan, a postdoctoral fellow in Nocera’s lab, have developed an unprecedented process that will allow the sun’s energy to be used to split water into hydrogen and oxygen gases. Later, the oxygen and hydrogen may be recombined inside a fuel cell, creating carbon-free electricity to power your house or your electric car, day or night.

Read more at MIT’s page on the project.

Thanks to Greg!

Algae Fuel Getting Better

- Adam Clare

I’m a firm believer in algae.

It seems that the future of our clean water, energy, and fuel can all come from algae. Indeed, algae can produce good products as an alternative to oil. Indeed, more research has gone into using algae as a fuel source and it looks more promising than ever.

Read about at Physorg.

“We’re looking at microscopic marine algae that produce fatty acids and do not have a cell wall. We plan to genetically modify the algae so that they will continuously produce these fatty acids, which we can then continually harvest,” Roberts says. “We also plan to genetically modify the algae to produce fatty acids of a specific length, to expedite the conversion of the fatty acids into fuels that can be used by our existing transportation infrastructure.” Specifically, Roberts says, “the goal is to create fuels that can be used in place of diesel, gasoline and jet fuel – though jet fuel will be the most technically challenging.” In other words, they hope to make fuels that are 100 percent compatible with the existing fuels’ storage and distribution system and run in existing vehicles – no modifications necessary.

And, Roberts stresses, “it has to be cost-competitive, or none of this makes sense. It’s easy to be cost-competitive when oil is at $300 a barrel, but it’s harder when the price of oil drops. Our goal is to optimize this technology so that it is cost-competitive, renewable, can be produced domestically and is environmentally friendly.”

Dow to Sell Solar Shingles

- Adam Clare

When I started Things Are Good many years ago I also wrote a short paper on creating a company based on selling shingles for roofs that have solar panels in them. I think DOW read my paper 😉 because next year they’ll be selling solar shingles.

$20 million invested in the company from the American government may equal up to $5 billion in revenue for Dow Chemical (best known for the horrible Bhopal disaster they committed) by 2015.

Reuters has some more on the product.

The new product is the latest advance in “Building Integrated Photovoltaic” (BIPV) systems, in which power-generating systems are built directly into the traditional materials used to construct buildings.

BIPV systems are currently limited mostly to roofing tiles, which operate at lower efficiencies than solar panels and have so far been too expensive to gain wide acceptance.

Dow’s shingle will be about 30 to 40 percent cheaper than current BIPV systems.

The Dow shingles can be installed in about 10 hours, compared with 22 to 30 hours for traditional solar panels, reducing the installation costs that make up more than 50 percent of total system prices.

The product will be rolled out in North America through partnerships with home builders such as Lennar Corp (LEN.N: Quote, Profile, Research) and Pulte Homes Inc (PHM.N: Quote, Profile, Research) before marketing is expanded, Palmieri said.

Dow received $20 million in funding from the U.S. Department of Energy to help develop its BIPV products.

Solar Tower Provides Plenty of Power

- Adam Clare 1 Comment

Solar power continues to prove to the world that the sustainable energy choice is a good and efficient source of electricity generation. Solar towers that rely on mirrors aimed at the tower to produce heat are a great way to spin a turbine to provide power for a lot of homes, I don’t understand why places with lots of sun and a lot of land don’t use more of these types of power plants. I’m looking at you Australia.

Read more about concentrated solar towers.

UBS Wealth Management, moreover, is predicting that the relatively small market for concentrated solar power tends to expand, with projected growth of almost 20 gigawatts in new capacity over the next decade. UBS analysts Gianrento Gamboni and Christoph Hugi, refers to the new projects in the United States and Spain as they say “After a long period of stagnation, the market is evolving more dynamically.”

What is a solar power tower?
One square kilometer of land holds the capacity – depending on the specifities of location – to generate as much as 100 gigawatt hours (GWh) of electricity per year through solar thermal technology. To make it clear, this amount is enough to run 50,000 residents.

One option to produce this energy is the solar power tower, which is a type of solar thermal plant that uses a tower to receive the sunlight, focused upon it via an array of flat, movable mirrors (ie. heliostats). These focused rays heats the water and the steam produced powers a turbine. As you see, no pollutants are emitted in producing the electricity.

Today liquid sodium is commonly used instead of water to store the energy during brief interruptions in sunlight or in night time.

Helping Fish Live can Generate Billions in Economic Activity

- Adam Clare

People who live on coasts tend to live off of the sea, which is a fantastic way to at local. However, due to modern commercial fishing fish populations and local ecosystems are being destroyed -so much so you can see damage done by commercial fishing from space. For years fisheries have argued that they have a right to continue their fishing practices because it’s how they earn a living. Well, here’s a better way to ensure they can earn a living: help those fish before you eat them (or don’t eat them 😉 ).

Pew has released a study that argues that rebuilding fish populations can generate billions of dollars for costal communities.

“Results from this study provide strong analytical evidence that there is significant value in rebuilding fish populations and lost financial benefits from delayed action,” said Dr. John M. Gates, report author and professor emeritus, Departments of Economics, Environmental and Natural Resource Economics, University of Rhode Island. “It’s important to note that the primary, direct benefits represent a conservative estimate and, if related economic benefits had been included, the result would likely expand well beyond the figures estimated in this study.”

Delays in rebuilding translate to lost opportunities for commercial and recreational fishermen to catch the maximum amount of fish that can sustainably be taken from a population. Failing to quickly address overfishing and allow populations to rebuild as quickly as possible forgoes current financial benefits and may result in more costly regulations in the long–term.

Key findings from the report show that:

Commercial landings would have increased by 48%, if the four populations had been rebuilt by 2007. The financial value would be approximately $33.6 million per year in perpetuity.
Rebuilding would bring an increase in recreational landings of 24% more per year than the status quo management. The economic value would be approximately $536 million per year in perpetuity.
These direct economic benefits would also likely generate secondary financial benefits in the Mid-Atlantic region through increased income, sales and jobs from businesses associated with commercial and recreational fishing, including bait and tackle shops.

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