In Grim California Drought, Renewables a Bright Spot

July 2, 2014

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NPR:

Steve Arthur practically lives out of his truck these days.

He runs one of Fresno’s busiest well-drilling companies, and hustles up and down the highway to check on drilling rigs that run 24 hours a day.

“It’s officially getting crazy,” Arthur says. “We go and we go but it just seems like we can’t go fast enough.”

Drilling in California isn’t just for oil and gas — it’s for water. And during this severe drought, farmers and ranchers are relying heavily on pumping groundwater. Counties in the farm-rich Central Valley are issuing record numbers of permits for new wells. But the drilling frenzy could threaten the state’s shrinking underground aquifers.

Arthur says he’s lucky if he gets three hours of sleep a night.
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State officials estimate water tables in some parts of the Central Valley have dropped 100 feet below historical lows. Groundwater pumping could also put more stress on the San Andreas Fault, which has moving plates that can cause earthquakes.

And those aren’t the only consequences.

“We’re on a one-way trajectory towards depletion, towards running out of groundwater,” says Jay Famiglietti, a University of California hydrologist and a leading expert on groundwater. He points out California’s the only Western state that doesn’t really monitor or regulate how much groundwater is pumped.

“So it’s not unlike having several straws in a glass, and everyone drinking at the same time, and no one really watching the level,” Famiglietti says.

That could change. A bill making its way through the California legislature could begin requiring local agencies to track, and in some cases, even restrict groundwater pumping. Some farmers oppose it, saying it’s a violation of their private property rights.

CleanTechnica:

One of wind energy’s most overlooked benefits is that it requires virtually no water to produce electricity, while almost all other electricity sources evaporate tremendous amounts of water. In 2008, the nation’s thermal power plants withdrew 22 to 62 trillion gallons of freshwater from rivers, lakes, streams, and aquifers, and consumed 1 to 2 trillion gallons. By displacing generation from these conventional power plants, U.S. wind energy currently saves around 35 billion gallons of water per year, the equivalent of 120 gallons per person or 285 billion bottles of water.

Wind energy’s water-saving benefits have received increased attention in recent weeks, with record wind and solar output helping to keep the lights on amidst the severe drought afflicting California and a new Department of Energy report focused on the energy-water nexus:

California is currently facing a record drought, and unfortunately climatologists view this as a harbinger of coming climate change. As of June 1, California’s precipitation stood at only 61 percent of average, the remaining snowpack was around 2 percent of average, and the state’s main reservoirs held only 50-70 percent of their average water storage.

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The drought has taken a toll on California’s hydroelectric generation, though wind energy is helping to pick up the slack. Through the end of April, California’s year-to-date hydroelectric generation stood at 3,981 GWh, down 3,475 GWh or 47% from the 7,456 GWh produced during the same period last year. Wind generation more than made up for that shortfall, providing 3,955 GWh through the end of April. California wind generation has grown more than 150 percent from the 1,550 GWh California produced during those same months in 2009.

As evidence of wind energy’s growth in California, the state grid operator set a new wind energy generation record of 4,768 MW on April 12 at 5:48 PM. This eclipses the previous record of 4,302 MW, which was set on June 23, 2013.

While the drought is imposing major costs on the state’s agriculture and Californians in general, the drought also poses challenges for electric reliability because the electricity system is so heavily dependent on water. The California grid operator expects 1,370 MW to 1,669 MW (18-22 percent) of the state’s 7,666 MW of hydroelectric power plants to be unavailable to provide energy to meet peak system demands this summer. Moreover, the grid operator notes that 1,150 MW of the state’s thermal power plants are at risk of having cooling water supply curtailments this summer.

In addition to directly offsetting freshwater consumption at thermal power plants, wind energy helps combat the impacts of drought by allowing grid operators to save hydroelectric energy (in the form of water behind dams) until they need it to meet grid reliability needs. A MWh of wind energy almost always displaces a MWh that would have been produced by a fossil-fired power plant, though sometimes grid operators use wind energy to store additional water behind dams where it can be used later to displace fossil fuel generation. While a number of complex factors affect how dams use their water resources, the abundant supply of wind energy this spring has likely alleviated pressure on the operators’ need to use water to produce electricity, helping them maintain reservoir levels so they can continue producing power and providing grid reliability services through the summer. In addition, in most regions the variability of the wind energy resource from year-to-year is much lower than that of the hydroelectric resource, so adding wind energy improves the reliability and resilience of the electricity system.

Last week, the Department of Energy released an in-depth report that explores the many ways our energy and water resource systems are intertwined. A primary finding of the report, first mentioned on page 2 and repeated several times throughout, is that “Some renewable energy sources—such as photovoltaics (PV) and wind energy—require very little water.” This is reinforced in the “key messages” box at the beginning of Chapter 2, which notes that “Some emerging technologies, such as carbon capture, have the potential to increase energy’s water intensity; others, such as wind and PV can lower it.”

 

Guardianlv.com:

Desperate farmers and ranchers in California seem to have the perspective that they have nothing to lose at this point and many of them are turning to water dowsers in the hope that they can divine the location of underground water on their lands so that they can drill more wells. Marc Mondavi, whose well-known family vineyard produces grapes in the Napa Valley area of California, is a not just a “believer” he even dabbles in water witching himself. He charges approximately $500 to divine for water and a further fee if he is successful in locating a productive site for a well. Mondavi has achieved some notoriety in Napa Valley for his dowser skills. In fact, the winery developed a line of wine called, “The Divining Rod” which comes with the description, “All wines are natural, only one is supernatural.” The website for the line of wine includes a “How to water witch” section and features a dramatic image of Mondavi with his diving rods in hand.

With drought conditions in California predicted to persist or even get worse, farmers, ranchers and residents are struggling to maintain their livelihoods, livestock and ability to meet their budgets as water fees and the costs of goods increases. Although there is no scientific evidence that water dowsers have real water location skills, the severity of the drought in the state has put some of them back in business.

 

 

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8 Responses to “In Grim California Drought, Renewables a Bright Spot”


  1. This article highlights how valuable renewables are during drought. Hydro water flows that would otherwise flow to the ocean can be pumped back into the reservoir using wind and soar to keep the hydro plants going. Wind and solar can keep going in the heat and drought when thermal PP need to be curtailed or shut down. Water flows used for thermal PP do not necessarily get to be reused for other purposes like agriculture. Most of the water in freshwater flows is in rivers which flow to the ocean. Some of it has to flow no matter what, to provide for wildlife.


  2. Andrew made this comment months ago. It pertinent now.
    andrewfez Says:

    November 1, 2013 at 2:00 am
    1 0 Rate This
    ‘We could start building 7,000MW of wind and 7,000MW of solar projects on the existing federally owned, hydro transmission systems, which have all seen catastrophic reductions in their power output. The hydro systems we built in the 1960′s on the upper Missouri are only delivering about 15% of their original design power output annually’.

    Minute 54 of the video:

    From the CC:

    http://climatecrocks.com/2013/10/30/water-green-energys-ace-the-achilles-heel-of-conventional-power/

    I didn’t get the connection between hydro flow and reuse by pumping the same water back into the reservoir that otherwise would flow to the ocean, using wind. This is becoming critical in California and the West. Andrew pointed out that there are a lot of hydro facilities begging to be used for storage from renewables in exactly this way. Not all hydro facilities have been set up to do this, but they can be. That is an overlooked potential.

    • andrewfez Says:

      Thanks Christopher,

      Today at our peak demand, solar and wind were supplying about 15% of that. If you add in small hydro, geothermal, biogas, and biomass, the combined renewable fleet was pushing in 20% of peak demand. My electricity rate is about $0.12/kWh. Geothermal alone is throwing down 0.9 GW of flat, reliable power.

      http://www.caiso.com/Pages/TodaysOutlook.aspx#Renewables

      And the US has 23GW of storage on their various grids; most of it being pumped hydro. So this isn’t as small a player as one would suppose. Batteries have a long way to catch up to pumped hydro.

      http://www.energy.gov/sites/prod/files/oeprod/DocumentsandMedia/FINAL_DOE_Report-Storage_Activities_5-1-11.pdf

      In other CA news, we’ve concentrated our ag water on plants directly consumed by humans. Other things (like stuff farm animals eat) are getting chopped. So far food prices haven’t seen any large spikes, at least at my grocery; though a while back i did see some lean ground beef for like 7 or 8 dollars per pound, whilst the less lean options were still kind of cheap.


      • Andrew- Firebaugh, a small Central Valley town is collapsing. The farm soil is dry,..there are no crops, no jobs, no income. This is one of the awful and very real consequences of GW. Upper midwest is under water, California drought. This is what Peters article about temperature distributions shows. The mean temperature has risen, and so has the variation. IPCC reports it as an increase in all weather extremes. Bad for crops, bad for people.

        http://www.nbcnews.com/video/nightly-news/54392418

        • andrewfez Says:

          Thanks for the video Christopher. Yeah, those guys are bad off. The central part of the CA is also mostly a dead zone for wind harvesting, so they wouldn’t even have the option to lease their fields for turbines to get ‘em through the next few years, even if there was accommodation for such regarding transmission.

          I’ve been seriously thinking of moving shop back to the east coast, where i can grow my own berries, vegetables, maybe some apple and chestnut trees and actually have rain to supply the water. Where I live now, you have to be a 1%er just to have a small backyard and there is no rain to grow anything. I use drip irrigation to feed bottom-reservoir style containers on my back patio, but even that can be a little water intensive for tomatoes. Meanwhile, my dad grows a lot of his food organically and even has berry plants on his property as well as in the woods out back of his place. He has a chestnut tree but he never harvests from it – just lets the squirrels and birds have at it.


  3. […] State officials estimate water tables in some parts of the Central Valley have dropped 100 feet below historical lows. Groundwater pumping could also put more stress on the San Andreas Fault, which has moving plates that can cause earthquakes. And those aren’t the only consequences. “We’re on a one-way trajectory towards depletion, towards running out of groundwater,” says Jay Famiglietti, a University of California hydrologist and a leading expert on groundwater. He points out California’s the only Western state that doesn’t really monitor or regulate how much groundwater is pumped.  […]


  4. Fracking is a huge consumer of water. We need to stop fracking, and that alone would make a huge difference.


    • As nuts as it may seem, and even in the midst of a drought, and even though the government says the amount of oil is very low and not economic, California has not banned tracking. Texas, ditto.


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