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kristopher

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Member since: Fri Dec 19, 2003, 02:20 AM
Number of posts: 29,657

Journal Archives

Q: Should Hillary return to the Senate in 2018?

If so, in what type of state should she make her run?

Stacked value: Combine distributed energy resources and goals to dramatically raise ROI

Stacked value: Combine distributed energy resources and goals to dramatically raise ROI
May 17, 2017

When it comes to achieving the best possible ROI from battery storage investments, a lot of potential value is being left on the table. This is mostly because many energy storage purchasers use only a fraction of their storage capacity. Worse, many target only one use with their storage systems, even though batteries can provide multiple uses and value streams.

The Rocky Mountain Institute’s report titled The Economics of Battery Energy Storage notes that an energy storage system dispatched solely for demand charge reduction is utilized for only 5–50% of its useful life, whereas dispatching batteries for a primary application and then re-dispatching them to provide multiple, stacked services make the economics of storage much greater.

In fact, a holistic approach that combines battery storage with other distributed energy resources (DERs) such as controllable loads can increase value streams dramatically and can, in fact, cut battery project payback times in half.

Enbala recently quantified the economics of storage alone versus storage plus load for a large energy service provider (ESP) seeking to control battery storage on C&I accounts so it could engage in a power purchase agreement (PPA) with a west coast utility. The primary goal was to provide capacity to the regional ISO (CAISO) using behind-the-meter storage. If the network could maintain its commitment level to the ISO, additional services and revenue streams could be stacked on, with the ESP retaining the rights to this additional value...

http://www.utilitydive.com/news/stacked-value-combine-distributed-energy-resources-and-goals-to-dramatical/442649/

Tucson Electric signs solar + storage PPA for 'less than 4.5/kWh'

Tucson Electric signs solar + storage PPA for 'less than 4.5¢/kWh'
AUTHOR
Gavin Bade


May 23, 2017
Dive Brief:

Tucson Electric Power has signed a power purchase agreement for a solar-plus-storage system at "an all-in cost significantly less than $0.045/kWh over 20 years," according to a company official. Exact prices are confidential, but a release pegged the PPA for the solar portion of the project at below $0.03/kWh.

The project, being developed by an affiliate of NextEra Energy Resources, calls for a 100 MW solar array combined with a 30 MW, 120 MWh energy storage system. If the pricing proves accurate, it would represent a major cost reduction for combined storage facilities since the signing of the last significant PPA — a $0.11/kWh Hawaii contract in January.

The PPA would confirm a forecast in Arizona's proposed "Clean Peak Standard" that solar-plus-storage facilities could compete with gas peakers on price. But TEP does not support the proposal, now on hold with regulators, and Energy Supply Director Carmine Tilghman said batteries do not provide the same capabilities as peaker plants.

http://www.utilitydive.com/news/tucson-electric-signs-solar-storage-ppa-for-less-than-45kwh/443293/


See also
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Plant Vogtle: Georgia’s nuclear ‘renaissance’ now a financial quagmire

BUSINESS By Russell Grantham and Johnny Edwards - The Atlanta Journal-Constitution

Southern Company’s chief executive has said more than once that the giant utility’s project to build two more nuclear reactors at Plant Vogtle would be history-making.
He may be right, but not in the way he meant.

Years behind schedule, billions over budget, and with a key contractor’s bankruptcy clouding its future, the troubled Vogtle project near Augusta is fast becoming Exhibit A for why no U.S. utility before Atlanta-based Southern had tried building a new reactor in 30-plus years....

http://www.myajc.com/business/plant-vogtle-georgia-nuclear-renaissance-now-financial-quagmire/5l16IFMFICknSCeI7RXG6J/

Syrian refugees in Jordan's desert get solar power

Syrian refugees in Jordan's desert get solar power
Karin Laub, Associated Press 10:06 p.m. ET May 19, 2017

AMMAN, Jordan — Syrian refugees in Jordan's remote desert were connected to solar power on Wednesday, making their community the world's first refugee camp to be powered by renewable energy.

The $4.5-million plant was funded by a foundation established by Ikea, the global home furnishings retailer. In the first phase, it will serve 20,000 of 35,000 people in Azraq camp.

The plant's capacity is to be more than doubled to provide power to all residents, for an eventual cost of $9.7 million, the United Nations refugee agency said...

http://www.freep.com/story/life/2017/05/19/solar-power-syrian-refugees-jordan-desert/101799908/

(Financial Times) The Big Green Bang: how renewable energy became unstoppable

The Big Green Bang: how renewable energy became unstoppable
The shift to cleaner power is disrupting entire industries. Will the 21st century be the last one for fossil fuels?

May 18, 2017 Pilita Clark


One of Torotrak’s most promising gadgets has long been the V-Charge, a smarter version of a turbocharger that took six years to develop. In the middle of last year, Mr Robson began pitching it to the world’s top auto component and carmakers, including General Motors, Volkswagen and Toyota.

About a dozen said they were interested. But by January, things changed. Company after company turned him down. Suddenly, none wanted new products for cars running on fossil fuels.

“They all said, ‘We think the shift to electric vehicles is accelerating and we have only limited R&D money to invest and we are going to put all of it into the electric car revolution’,” Mr Robson says. “This is a colossal structural shift and it’s come at a pace that has never occurred in people’s careers before in this industry.”

Torotrak was hit hard. Its shares plunged 40 per cent. It has shut down one of its main engineering sites, making about 40 staff redundant, and put the V-Charge on ice. It is now focusing on heavy-duty diggers and other gear it hopes will not go electric any time soon.

Much more at: https://www.ft.com/content/44ed7e90-3960-11e7-ac89-b01cc67cfeec

Get Your Behind-the-Meter Battery for $15 a Month

Tesla and Green Mountain Power: Get Your Behind-the-Meter Battery for $15 a Month

Tesla and Green Mountain Power: Get Your Behind-the-Meter Battery for $15 a Month
A super-cheap energy storage offering, built on the promise of the Powerwall 2 and SolarCity’s GridLogic software.

by Jeff St. John
May 12, 2017

Tesla and Vermont utility Green Mountain Power are offering a low price for home backup batteries: $15 per month.

Now they’ve only got to get 2,000 customers to sign up, and make sure they’re capturing the additional grid benefits from each Powerwall 2 to make the price pencil out for the utility.

That’s the plan behind Tesla’s offering, unveiled Friday, to equip Vermonters with emergency backup power during blackouts.

That’s less than half the $37.50 per month that GMP set for its first test-run offering of Powerwalls back in late 2015, after testing Tesla’s technology in a pilot project in Rutland, Vt.

The difference in prices comes from two main sources...
https://www.greentechmedia.com/articles/read/tesla-and-green-mountain-power-get-your-behind-the-meter-battery-for-15-a-m?utm_source=Daily&utm_medium=Newsletter&utm_campaign=GTMDaily

The business case for pollinator-friendly solar sites

The business case for pollinator-friendly solar sites
Steve Levitsky, Brian Riddle, Dennis vanEngelsdorp and Albert Todd
Monday, May 15, 2017

Courtesy of: Fresh Energy

A critical opportunity is being largely overlooked on solar sites developed on farmland and outside of the desert Southwest — there has been too much focus on the hardware and not enough consideration of the vegetation under and around the panels.

Some folks don’t like living next to solar arrays, particularly when the array is "solar-centric" in design (gravel covering the site). Instead of solar-centric approaches, businesses can help local farms and lakes, streams and estuaries by encouraging co-benefit/low-impact solar designs that are planted with native flowering plants.

We support the development of new "pollinator-friendly" solar approaches, which bring with them potential agricultural, economic and environmental benefits.

Opportunities for agriculture

Pollinator habitat on solar sites is a common practice in Minnesota and Wisconsin, and is abundantly feasible wherever solar installations are replacing rowcrops. The practice simply uses a different seed mix — not turf grass — to create a low-growing and shade-tolerant flowering meadow. These flowering plants have many agricultural and ecological benefits. The U.N. Food and Agriculture Organization estimates that globally, 75 percent of food crops rely at least partially on pollination. Pollinator-friendly solar sites can bring pollinators into closer contact with food crops.

...
...

Improvement of soil and water quality

Instead of gravel or turfgrass, sites with properly designed native vegetation help capture nutrients in the soil and prevent the movement of nutrients into our lakes, streams and estuaries (the Chesapeake Bay being the nation’s largest). Unlike shallow-rooted turfgrass, deep-rooted native flowers and grasses significantly increase organic matter and the quality of soils. ...

... https://www.greenbiz.com/article/pollinator-friendly-solar-sites

Blackout parties: how solar and storage made W. Australia farmers the most popular in town

Blackout parties: how solar and storage made WA farmers the most popular in town
Once considered an eco-warrior’s pipe dream, renewable energy is rapidly gaining ground in the traditional mining state of Western Australia

Max Opray 14 May 2017
Along the remote southern coastline of Western Australia, the locals have cottoned on to a new, surefire way to keep their beer cold.

The energy grid around Esperance and Ravensthorpe is unreliable at the best of times, but after a bushfire took out the poles and wires around these far-flung outback towns last year, the power company asked residents if they might be interested in trying out a more economically and environmentally sustainable way to keep the lights on and the bar fridge humming.

Rather than fully rebuild the sprawling infrastructure required to reconnect all residents to the grid, network operator Horizon Power turned to WA renewables pioneer Carnegie Clean Energy to help roll out stand-alone solar and storage systems.

The Carnegie managing director, Michael Ottaviano, said the scheme had led to a new phenomenon in the towns. “People assume the grid is something reliable and permanent, but in reality it is a centralised system with very long lines out to remote communities – it is in fact highly susceptible to failure,” he says.

“And when it does now we’re hearing our customers are having blackout parties. You take Raventhorpe for instance...

https://www.theguardian.com/sustainable-business/2017/may/15/blackout-parties-how-solar-and-storage-made-wa-farmers-the-most-popular-in-town

Blackout parties: how solar and storage made Western Australia farmers the most popular in town

Blackout parties: how solar and storage made WA farmers the most popular in town
Once considered an eco-warrior’s pipe dream, renewable energy is rapidly gaining ground in the traditional mining state of Western Australia

Max Opray 14 May 2017
Along the remote southern coastline of Western Australia, the locals have cottoned on to a new, surefire way to keep their beer cold.

The energy grid around Esperance and Ravensthorpe is unreliable at the best of times, but after a bushfire took out the poles and wires around these far-flung outback towns last year, the power company asked residents if they might be interested in trying out a more economically and environmentally sustainable way to keep the lights on and the bar fridge humming.

Rather than fully rebuild the sprawling infrastructure required to reconnect all residents to the grid, network operator Horizon Power turned to WA renewables pioneer Carnegie Clean Energy to help roll out stand-alone solar and storage systems.

The Carnegie managing director, Michael Ottaviano, said the scheme had led to a new phenomenon in the towns. “People assume the grid is something reliable and permanent, but in reality it is a centralised system with very long lines out to remote communities – it is in fact highly susceptible to failure,” he says.

“And when it does now we’re hearing our customers are having blackout parties. You take Raventhorpe for instance...

https://www.theguardian.com/sustainable-business/2017/may/15/blackout-parties-how-solar-and-storage-made-wa-farmers-the-most-popular-in-town

Teslas Home Solar Roof Pricing Is Cheap Enough to Catch Fire

Tesla’s Solar Roof Pricing Is Cheap Enough to Catch Fire
The cost of Elon Musk’s remarkable new product is judged “better than everyone expected.”
by Tom Randall
May 10, 2017

....Tesla will begin with production of two of the four styles it unveiled in October: a smooth glass and a textured glass tile. 1 Roofing a 2,000 square-foot home in New York state—with 40 percent coverage of active solar tiles and battery backup for night-time use—would cost about $50,000 after federal tax credits and generate $64,000 in energy over 30 years, according to Tesla’s website calculator.

That’s more expensive upfront than a typical roof, but less expensive than a typical roof with traditional solar and back-up batteries. The warranty is for the lifetime of your home.

“The pricing is better than I expected, better than everyone expected,” said Hugh Bromley, a solar analyst at Bloomberg New Energy Finance who had been skeptical about the potential market impact of the new product. Tesla’s cost for active solar tiles is about $42 per square foot, “significantly below” BNEF’s prior estimate of $68 per square foot, Bromley said. Inactive tiles will cost $11 per square foot....



The vision Musk describes with the solar roof is the grand unification of Tesla’s clean-energy ambitions, combining solar power, batteries, and electric cars. “These are really the three legs of the stool for a sustainable energy future,” Musk said. “Solar power going to a stationary battery pack so you have power at night, and then charging an electric vehicle … you can scale that to all the world’s demand.”

The rooftop shingles are virtually indistinguishable from traditional high-end roofing products, with ...
https://www.bloomberg.com/news/articles/2017-05-10/tesla-s-solar-roof-is-finally-ready-for-you-to-buy
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