Let's go green: 2016-03-13

The World Wind Energy Association (WWEA) and New Energy Husum are pleased to invite all small and medium wind stakeholders to participate in the 7th World Summit for Small Wind (WSSW2016), taking place in Husum/Germany on 17 and 18 March 2016, in parallel with the New Energy Husum Trade Fair 2015 (17- 20 March 2016).

The main theme of the 7th WSSW is New opportunites for small wind – the global shift towards 100% renewables. The summit is aimed at jointly exploring new markets and potential applications for small wind turbines. Also, to present new innovative business models that could exploit the competitiveness of the technology in developed and developing countries.

source:http://small-wind.org

A federally backed, $2.2 billion solar project in the California desert isn't producing the electricity it is contractually required to deliver to PG&E Corp., which says the solar plant may be forced to shut down if it doesn't receive a break Thursday from state regulators.

The Ivanpah Solar Electric Generating System, owned by BrightSource Energy Inc., NRG Energy Inc. and Alphabet Inc.'s Google, uses more than 170,000 mirrors mounted to the ground to reflect sunlight to 450-foot-high towers topped by boilers that heat up to create steam, which in turn is used to generate electricity.

But the unconventional solar-thermal project, financed with $1.5 billion in federal loans, has riled environmentalists by killing thousands of birds, many of which are burned to death—and has so far failed to produce the expected power.

PG&E is asking the California Public Utilities Commission for permission to overlook the shortfall and give Ivanpah another year to sort out its problems, warning that allowing its power contracts to default could force the facility to shut down. The commission's staff is recommending that it grant the extension Thursday.

"Continuing the delivery of [renewable] energy from these innovative energy facilities is in the interest of all parties and furthers important state and federal policy goals," a PG&E spokeswoman said.

Spokesmen for BrightSource, which developed the technology, and NRG, which operates the plant, declined to comment on its future. NRG has said it has taken more than a year to adjust equipment and learn how to best run it.

The Energy Department said last week it supports giving the plant, which started operating in early 2014, more time.

However, the extension request is opposed by some consumer groups, who are complaining that the cost of the electricity from the struggling plant is exorbitant.

Power from the two Ivanpah units that serve PG&E last year fetched about $200 a megawatt-hour on average during summer months, and about $135 a megawatt-hour on average the rest of the year, according to sales data from the Federal Energy Regulatory Commission.

That compares to an average price of $57 a megawatt-hour for solar power sold under contracts signed in 2015, according to Bloomberg New Energy Finance. Power from natural-gas plants went for $35 a megawatt-hour on average in California's wholesale market last year, according to a Wall Street Journal analysis of data compiled by the Energy Department.

PG&E negotiated the contracts in 2009, when solar power prices were much higher.

"We think PG&E could negotiate a better price," said Karin Hieta of California's Office of Ratepayer Advocates, which believes PG&E should cancel the contract or rework the deal.

The portion of the Ivanpah plant that supplies PG&E in 2014 generated 45% of the electricity the state commission expected under the power contracts, and 68% in 2015, according to a Wall Street Journal analysis of federal data and state documents.

The plant wasn't required to meet the full amount, under the confidential terms of the contracts, said Joe Desmond, a senior vice president at Oakland, Calif.-based BrightSource.

PG&E signed the Ivanpah contracts as part of efforts to comply with a state law that requires utilities to provide 33% of their power from solar, wind or other renewable sources by 2020. State lawmakers last year boosted the mandate to 50% renewables by 2030. A spokesman said PG&E has more renewable energy than it needs to meet its current requirement, and it is still on track to meet both mandates.

Helping Hand Tools, an environmental group that fights construction of new power plants, is also asking the state commission to reject PG&E's request to give the Ivanpah plant more time. Unlike traditional solar projects, Ivanpah uses natural gas to heat boilers to make steam used to warm up its power turbines, which emits some pollution.

"It's not a renewable energy plant, it's part gas, part solar," said Robert Sarvey, a spokesman for the group.

More than 2,000 wild birds died at the Ivanpah plant between March and August of 2015, according to estimates that biologists hired by the plant owners filed this week and in December with the state Energy Commission.

Roughly half of the dead birds the biologists found had feathers that were singed or burned, most likely from flying through an area of intense heat between the mirrors and the power towers, according to the reports.

To be sure, birds also fall prey to other renewable-energy projects: Wind turbines kill between 140,000 and 328,000 birds in the U.S. every year, according to a 2013 study by researchers at the Smithsonian Conservation Biology Institute.

Saturday, 19 March 2016

Friday, 18 March 2016

Thursday, 17 March 2016

source:Dow Jones News