Some time ago I wrote about an abandoned open pit mine at Marmora, Ontario, northeast of where I live in Toronto. I have visited this site, seen in the picture below, on many occasion when traveling from Toronto to Eastern Ontario. It is truly an awesome experience to drive to the edge of this human engineered hole in the ground.
Each time I visited I wondered what plans were in store for this open scar in the earth, some 213 meters deep surrounded by 70 million tons of waste rock towering as high as a 12-storey building. The head from the top of the waste rock to the bottom of the quarry is 3 to 4 times the height of the 53 meter drop at Niagara Falls, the single largest source of hydroelectricity in Ontario.
What Northland Power, a company based in Toronto, is proposing to do is use a combination pump generator to provide electricity to the grid by taking energy from the grid during low usage periods to pump water from the depths of the quarry to an above ground reservoir with an average head of 140 meters (459 feet). During the day when demand peaked the water flow would be reversed using the same pipe but this time instead of using power it would generate 400 Megawatts of it.
Ontario has been eliminating coal as a power source with the last large coal-powered generator ceasing to operate by the end of this year. The result, Ontario will rely on a mix of nuclear heavy water, hydroelectric, natural gas, wind and solar to meet daily demands. The province has invested heavily in wind. Capacity stands today at 1,700 Megawatts with plans to grow to 7,800 Megawatts by 2018. A stored energy system like the $700 million hydroelectric Marmora project would offset the variability and intermittency that comes with wind. In addition pumped storage would be a zero carbon emission technology and would be used to stabilize demand and supply smoothing total power available across the grid at any time.
Project costs for Marmora are estimated at $700 million, a fraction of what it would cost to bring on additional nuclear power capacity and the timelines to go live would be dramatically shorter. The repurposing of the mine would revitalize the local economy and put back into use an area that lies abandoned and desolate. What will the new Marmora site look like? Check out the picture below. The pit is on the left with the reservoir to its right.
Is the Marmora project unique? No. There are literally hundreds of abandoned open pit mines where similar pumped storage generation could take place. And pumped storage is only one technology option in an arsenal of new storage concepts that include molten salt, compressed air, flywheels and next-generation chemical batteries. You can check out one of my previous postings on the subject.
Essays and comments posted in World Future Society and THE FUTURIST magazine blog portion of this site are the intellectual property of the authors, who retain full responsibility for and rights to their content. For permission to publish, distribute copies, use excerpts, etc., please contact the author. The opinions expressed are those of the author. The World Future Society takes no stand on what the future will or should be like.
Free Email Newsletter
To sign up for Futurist Update, our free monthly email newsletter, enter your email in the box below and click Save.
NASA's Jet Propulsion Laboratory (JPL) is using 3-D printing with multiple materials, proving that additive manufacturing is not just the future of manufacturing, but also the present.
The purpose of the Global Calculator website is to gather evidence about our impact on global climate. An open source tool, its developers are seeking public feedback to ensure that its modelling improves in accuracy over time. They are providing it to the world community under open license.
What happens in the Middle East reverberates across the world. There lie the roots and holiest historical places of the three monotheistic religions, Judaism, Christianity and Islam. There lies the frontier between East and West. And much of the world’s remaining oil is found in this prized and disputed region.
When we look into space we are actually looking back in time. This is because we are looking at old light traveling towards us at 186,000 miles/second. We already know that if someone is watching us through a large telescope on the Moon, they’re seeing events that happened 1.3 seconds earlier because that’s how long it takes light to reach Earth. Using this as a very crude proof, we already know that information does indeed transcend the here and now, but can we ever access it and reassemble it into a useful form?
The outbreak of Ebola in West Africa has implications for world health that cannot be ignored. The disease has killed more than 660 and infected almost 1,100 in four countries since March of this year and new cases are cropping up every day.
The images that Curiosity is sending back from Gale Crateris showing soil profiles similar to the ancient soil found in the dry valleys of Antarctica and in the alto-Plano of the Atacama Desert in Northern Chile. The soil images and data indicate chemical weathering and accumulations of clay just as one would find them here on Earth. Phosphorus depletion, associated with microbial activity here on Earth, is evident from the information Curiosity has gathered.
Nikolai Kardashev, a Soviet astrophysicist born in 1932, devised a method of rating advanced civilizations. Technological advances, according to Kardashev, could theoretically create conditions where a society could maximize use of energy. He categorized each of these stages as Type 1 through Type 4. Based on Kardashev's speculations where does our civilization sit today?
Powdery mildew-resistant wheat has been created using a pair of DNA-clipping and insertion tools. These are tools developed by Editas Medicine for editing defective DNA and are being used in the fight against a number of genetic diseases. And with wheat they are proving to be useful in overcoming the devastating impact of mildew.