• 4 hours Oil Prices Rise After API Reports Major Crude Draw
  • 5 hours Citgo President And 5 VPs Arrested On Embezzlement Charges
  • 5 hours Gazprom Speaks Out Against OPEC Production Cut Extension
  • 6 hours Statoil Looks To Lighter Oil To Boost Profitability
  • 7 hours Oil Billionaire Becomes Wind Energy’s Top Influencer
  • 8 hours Transneft Warns Urals Oil Quality Reaching Critical Levels
  • 9 hours Whitefish Energy Suspends Work In Puerto Rico
  • 10 hours U.S. Authorities Arrest Two On Major Energy Corruption Scheme
  • 22 hours Thanksgiving Gas Prices At 3-Year High
  • 1 day Iraq’s Giant Majnoon Oilfield Attracts Attention Of Supermajors
  • 1 day South Iraq Oil Exports Close To Record High To Offset Kirkuk Drop
  • 1 day Iraqi Forces Find Mass Graves In Oil Wells Near Kirkuk
  • 1 day Chevron Joint Venture Signs $1.7B Oil, Gas Deal In Nigeria
  • 1 day Iraq Steps In To Offset Falling Venezuela Oil Production
  • 1 day ConocoPhillips Sets Price Ceiling For New Projects
  • 4 days Shell Oil Trading Head Steps Down After 29 Years
  • 4 days Higher Oil Prices Reduce North American Oil Bankruptcies
  • 4 days Statoil To Boost Exploration Drilling Offshore Norway In 2018
  • 4 days $1.6 Billion Canadian-US Hydropower Project Approved
  • 4 days Venezuela Officially In Default
  • 4 days Iran Prepares To Export LNG To Boost Trade Relations
  • 4 days Keystone Pipeline Leaks 5,000 Barrels Into Farmland
  • 5 days Saudi Oil Minister: Markets Will Not Rebalance By March
  • 5 days Obscure Dutch Firm Wins Venezuelan Oil Block As Debt Tensions Mount
  • 5 days Rosneft Announces Completion Of World’s Longest Well
  • 5 days Ecuador Won’t Ask Exemption From OPEC Oil Production Cuts
  • 5 days Norway’s $1 Trillion Wealth Fund Proposes To Ditch Oil Stocks
  • 5 days Ecuador Seeks To Clear Schlumberger Debt By End-November
  • 5 days Santos Admits It Rejected $7.2B Takeover Bid
  • 6 days U.S. Senate Panel Votes To Open Alaskan Refuge To Drilling
  • 6 days Africa’s Richest Woman Fired From Sonangol
  • 6 days Oil And Gas M&A Deal Appetite Highest Since 2013
  • 6 days Russian Hackers Target British Energy Industry
  • 6 days Venezuela Signs $3.15B Debt Restructuring Deal With Russia
  • 6 days DOJ: Protestors Interfering With Pipeline Construction Will Be Prosecuted
  • 6 days Lower Oil Prices Benefit European Refiners
  • 6 days World’s Biggest Private Equity Firm Raises $1 Billion To Invest In Oil
  • 7 days Oil Prices Tank After API Reports Strong Build In Crude Inventories
  • 7 days Iraq Oil Revenue Not Enough For Sustainable Development
  • 7 days Sudan In Talks With Foreign Oil Firms To Boost Crude Production
Bankrupt Venezuela Asks Partners For Free Oil

Bankrupt Venezuela Asks Partners For Free Oil

Following Venezuela’s official default last…

China Is The World’s Biggest Energy Market Mover

China Is The World’s Biggest Energy Market Mover

China is the foremost consumer…

U.S Energy Storage Solution Helps Out Asian Diary Production

U.S Energy Storage Solution Helps Out Asian Diary Production

South Asia may be the world’s leading producer of milk, but its dairy farmers have to fight hot weather in a region where electric refrigeration is can seldom be relied on. But now a company based both in the United States and in India has come up with a battery that uses heat to keep milk cold.

Many farmers in India and Bangladesh transport their milk to small collection centers in their neighboring villages, where it is sold to representatives of large dairies. If the milk spoils before it’s collected, the farmer isn’t paid. And conventional refrigeration isn’t an option because of the spotty electrical service provided by India’s electrical grid.

So far, the only alternative is for each farmer to invest in a diesel generator, which not only increases the expense of producing milk, but also is bad for the environment.

Related: This JV Could Trigger A Shale Boom In An Unexpected Venue

Now Promethian Power Systems, based in Boston and in Pune, in west-central India, has what may be the solution: Rapid Milk Chillers powered by a thermal battery that creates enough ice to store 28 kilowatt-hours of energy.

When electricity is available, ice forms in the battery as it charges. When the grid fails, as it does often, the ice maintains of the temperature of the chilling unit. Each of these refrigerators holds more than 500 gallons of milk, keeping it cool long enough to last until it is collected. The dome-shaped device can quickly cool milk from 95 degrees Fahrenheit down to 39 degrees.

Promethian Power was founded in 2007 by two Americans, Sam White and Sorin Grama, to address this very dilemma faced by dairy farmers in South Asia. Already the company has been selling units in India, and recently began sales in neighboring Bangladesh.

Related: Oil Price Collapse Triggers Currency Crisis In Emerging Markets

“We’ve been at this for eight years,” White said in an interview with MIT Technology Review. “[W]e’ve gone through all sorts of different technologies, attempts and failures to figure out a solution.”

One failure was an effort to use solar power to cool the milk. But, like the electrical grid in South Asia, solar power is far from constant. After testing a few other technologies, the researchers at Promethian Power eventually developed a device that uses technology known as phase-change, which relies on heat transfer to transform one phase of a given material to another.

White said the result isn’t a new form of energy. “[W]e’re simply storing the intermittent power that they do get and parceling it out over time,” he explained.

Related: Why Water Is More Important To Iran’s Future Than Oil

Already there’s evidence that the technology has improved the economics of milk production. The dairy collection center in Chetawala, in India’s northwestern state of Rajasthan, reports that it’s saved about 40,000 rupees ($628) each month since it installed Promethain Power’s dairy refrigerator, and that its production has grown from about 500 liters of milk per day to about 800 liters per day.

Large dairies that buy the farmers’ milk install the Rapid Milk Chillers in pairs at the village collection centers. The units can keep milk fresh for as long as two days. This means collection tanker trucks no longer have to make daily pickups.

Since it began marketing the Rapid Milk Chillers in 2012, Promethian Power has sold 60 pairs of the devices, and plans to sell even more as demand for them increases. Meanwhile, White and Grama are adapting their technology to help preserve other perishable foods such as vegetables.

By Andy Tully Of Oilprice.com

More Top Reads From Oilprice.com:



Join the discussion | Back to homepage

Leave a comment
  • JAMCL on August 24 2015 said:
    This sounds similar to load shifting technology used in areas of the US with high prices for peak electricity demand. Supermarkets are making ice at night when electricity is cheap and using the ice to cool the refrigerated section during daytime hours when electricity is more expensive. There are many load shifting technologies coming on line, all of which make the "base load" arguments less relevant.

Leave a comment

Oilprice - The No. 1 Source for Oil & Energy News