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Member since: Fri Dec 19, 2003, 02:20 AM
Number of posts: 29,798

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Renewables vs. Nuclear: Do We Need More Nuclear Power?

Renewables vs. Nuclear: Do We Need More Nuclear Power?

...Let’s take a look at the last 10 years and the next 10 years…

New U.S. renewable and nuclear capacity added the last 10 years (output):

55 GW utility wind (22 GW)
17 GW rooftop PV solar (3.5 GW)
10 GW utility PV and solar thermal (2.5 GW)
15 GW biomass and biogas (12 GW)
3 GW Geothermal (2.5)
Total renewables: 100 GW (42.5 GW)
Total nuclear: Marginal increase from existing plants
(2004-2014 = approx 2.6MWe of up-rated nuclear generation - K)


U.S. renewable and nuclear plan the next 10 years capacity and (output):

130 GW utility wind (52 GW)
75 GW rooftop PV solar (15 GW)
35 GW utility PV and thermal solar (9 GW)
60 GW biomass and biogas (51 GW)
5 GW Geothermal (4 GW)
Additional renewable power next 10 years: 305 GW (131 GW)
Additional nuclear power next 10 years: 5.6 GW (5.1 GW)

The above output numbers for renewables assume no advances in wind or solar efficiency and no grid storage. Both assumptions will become completely false, so the 131 GW number should be considered a minimum number....

There is much more to the discussion: http://www.renewableenergyworld.com/rea/blog/post/2015/04/renewables-vs-nuclear-do-we-need-more-nuclear-power?page=all

Now, about that minimum number and storage:
Tesla-Powered Wal-Mart Stores Attest to Musk's Energy Storage Ambitions



While companies like Coda Energy, Green Charge Networks and Stem have also applied for SGIP funds, Tesla accounts for almost half of all storage applications, Bloomberg New Energy Finance said in an April 2 report published for clients. BNEF also said Tesla accounts for about 70 percent of SGIP storage projects connected to California’s grid.

Jackson Family Wines, based in Santa Rosa, has a new partnership with Tesla involving battery storage and several vehicle charging stations, according to the February issue of Wine Business Monthly. The winery declined to comment.

Mack Wycoff, Wal-Mart’s senior manager for renewable energy and emissions, said the company is intrigued by energy storage. “Instead of pulling electricity from the grid, you discharge it from the battery,” he said. “Ideally you know when your period of peak demand is, and you discharge it then.”

Mike Martin, Cargill’s director of communications, declined to provide details about how the company plans to use Tesla batteries at the Fresno plant. The 200,000-square-foot facility, one of the largest of its type in California, produces nearly 400 million pounds of beef each year.

Janet Dixon is director of facilities at the Temecula Valley Unified School District in southern California, which plans to install solar panels at 20 of its 28 schools this summer. Dixon said that SolarCity is the solar provider, and five of the facilities will have Tesla batteries.



Floating nuclear power plants promise major savings for Arctic mines

Floating nuclear power plants promise major savings for Arctic mines
Diesel-fuelled power “not sustainable for the scale of development we want to see"


Mining projects in Nunavut are saddled with high expenses that could discourage development.

With that in mind, why not go for a tried and proven cheaper source of energy that can come and go on the high seas, and reach the territory’s coastal communities?

That’s just what Dunedin Energy Systems Ltd., an Ontario-based energy consulting firm, suggested when it pointed to “floating nuclear power plants” as an alternative energy source, April 16 at the Nunavut Mining Symposium in Iqaluit.

Nuclear power generators have been cruising the high seas in the ships of the world’s biggest navies since the 1950s, Peter Lang, president of Dunedin, told an audience at the symposium.

“Since then, civilian applications have come along,” Lang said ...
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