News

Here are some news articles I've come across that I find interesting for one reason or another. Note that the articles are posted in the order that I find them, not by publication date.

IMG_2166

World
  • 10/17/2012 -   Denmark Hits 200 Megawatt Solar Capacity Goal 8 Years Ahead of Schedule
    Always known for green energy and progressive politics, near-polar Denmark now produces more than 20% of its energy from renewables. The biggest surprise here might be that selling energy into the grid with net metering wasn't available until 2010.
  • 11/22/2012 -   Scotland Schools the States on Offshore Wind Initiatives
    While the US is considering cutting wind subsidies, Scotland is building French manufacturing facilities to supply their offshore turbines. While the rest of the world is still in discussion, Scotland has increased their renewable energy production from 3% in 2006 to 35% in 2011.
  • 6/26/2012 -   China’s First Wind-Farm Lull Limits Outlook for Sinovel: Energy
    China is currently developing 2.3gW of offshore wind with another 13.6gW with gov approval waiting in the wings make it the proud owner of NEARLY HALF the world's currently proposed 40gW[1]. However, gov delays have incited criticism, and shaky investor support could endanger the future of these projects, siting them as financially "unrealistic".
  • 11/12/2012 -   Solar power, too, was gone with the wind
    Little known to many, solar panels automatically shut down during outages to avoid electrocuting workers. The obvious solution, buying a battery, is too expensive for most at $8,000.
  • 4/18/2012 -   Global wind capacity to reach 500 GW in 2016
    Good news for wind and clean energy, but looking at it holistically, according to the US IEA this is 0.000002477578% of world power production. Even accounting for other clean energy sources, there's a long way to go!
  • 9/18/2012 -   Shift by Cuomo on Gas Drilling Prompts Both Anger and Praise
    NY governor Andrew Cuomo delayed fracking in NYS to commission another study into its health effects. Industry cries foul while Cuomo cries "...decision will be made based on the science...". I second that.
  • 9/18/2012 -   Chinese Solar Companies Slash Costs
    The price dumping is finally catching up to the Chinese solar industry as they cut costs because of new US anti-dumping tariffs and anticipated similar moves from the EU after their recording breakingly-large investigation.
New Installations
Wild Ideas
  • 12/27/2013 -   Apple's wind turbine technology uses heat, not rotational energy to generate electricity
    Apple has patented a new type of wind turbine that produces heat which is then stored to turn a turbine. Seems similar to concentrated solar's molten salt energy storage, but can it really produce enough heat? Seems questionable...
  • 1/9/2013 -   Google is Greenwashing, Paper Industry Claims
    An angry debate has sprung up between Google and the paper industry about the seemingly innocuous push for a paper-less world. With both sides having an obvious horse in the race, the paper industry makes a good point that sustainable paper production can be green whereas power production needed to run computers is decidedly bad for the environment.
  • 1/9/2013 -   Close up - Testing the V164 80-metre blade
    An uneventful look at the largest turbine blade yet made with the exception of the description of their testing and data collection process. They are building a database comprehensive enough to completely avoid using prototypes in the future.
  • 10/3/2012 -   China and Netherlands sign deal for world’s largest tidal energy project
    Dynamic Tidal Power (DTP) is a Dutch technology that sets up a physical barrier between coastal places with different tidal patterns and pushes turbines with the water pouring from high to low tide. This project will set up a small demonstration plant in China, which is said to have 150 gigawatts of DTP potential.
  • 7/4/2012 -   Scientists to push organic solar cell efficiency
    Organic solar has already reached 10% efficiencies in the lab and have excellent flexibility, but have more distance to cover before competing with silicon on a price/watt basis.
Business
Taiwan
  • 5/19/2012 - U.S. anti-dumping tariffs on China solar firms may benefit Taiwan
    Solar producers in Taiwan don't have nearly the subsidies that the Chinese enjoy, but the relative competitive edge should make a difference.
  • 4/26/2012 - Privatization, competition aren't magic solutions for energy woes
    An op-ed about recent calls for privatization of the state-run Taipower and CPC companies, which control electricity and petroleum respectively, as a result of recent economic strains, increased prices, and complaints of inefficiency.
  • 4/25/2012 - President Ma Calls for National Energy Saving
    A positive call to action amid rising energy costs, but upon completion in 2018 the 815,000 new LED bulbs nationwide will cut national energy consumption in Taiwan a mere .04%. The $3.34USD billion loan program for companies to purchase more efficient equipment seems likely to be more effective.
  • 4/18/2012 - 2012 Global Economic Energy Efficiency Ranking
    The US is ranked as the #1 in increased efficiency since 2005, followed by mostly other developed nations.
  • 4/17/2012 - Businesses quietly pre-empt energy price hike
    In reaction to increased fuel prices and anticipation of higher electricity prices planned for March, business are beginning to increase their prices. The rice industry is considering an increase in prices of "at least 20 to 30 percent" to compensate farmers" additional costs.

Revenge of the Electric Car - 2011 - Movie Review

4/25/2012


4/25/2012 - This war for the road is a very new conflict, with battery technology's potential finally beginning to match its lofty goals as a complete replacement for the gas guzzling wonders we've all come to know and love (or at least accept). Despite the violent rhetoric, emotions running high in the industry and political angles relating to this situation it is actually quite a simple transition to new technology, simply infused with strong passions and on a massive scale. Although it skims over some important points, such as the challenges of building a proper charging station infrastructure, this documentary does a good job of showing some of the real struggles that this industry has encountered from its floundering beginnings as mere concept to its current incarnation as a fledgling, yet onward trudging, consumer market.
The EV1 was GM's first completely electric car,
produced from 1996-1999

The fate of the EV1
Director Chris Payne begins roughly where his previous (and slightly less optomistic) documentary, "Death of the Electric Car", left off. The scene he paints is a classic: addiction to oil, reliance on cars, conservative governments loath to invest in such a risky technology, and the failure of the American automobile industry. The documentary revisits the EV1, General Motors first take on the electric vehicle and the centerpiece of "Death of the Electric Car", as a cautionary tale of failure in this industry and jumps right into the current group of solid competitors in the arena.

The Nissan Leaf, Chevy Volt, and extremely flashy Tesla Roadster are the main focuses, and the documentary does a good job of showing exactly how they are approaching the market and what their separate goals are. They are also each attached to their own powerful personality that is personally driving their vision of the electric car at what is shown as great personal risk.

Carlos Ghosn in front of the Nissan Leaf at a show
The Nissan Leaf ($35,000USD) is headed by Carlos Ghosn, the very serious and ruthless Brazilian-born French businessman (who I could easily see Andy Garcia playing in the Hollywood retelling, think Ocean's 11), here given the somewhat overblown title of "The Warrior". He the man responsible for Nissan's amazing turnaround 10 years ago (along with a mass of job cuts) and was in charge of overseeing the Leaf from beginning to end. There is an excellent scene where they are discussing Mitsubishi's electric car that shows his practicality and business sense well. Carlos Ghosn asks the competing car's price and someone responds with $50,000. Carlos' response is incredulous, "It's $50,000? That has nothing to do with the electric car. I mean, this is a niche product." Very astute.

Elon Musk in front of his Tesla Roadster at its release party

The Tesla Roadster ($109,000) is spearheaded by Elon Musk, who has become one of the most visible celebrity CEO's of the past year. His new venture, Tesla, joins his privatized space travel company SpaceX as an imaginative stretch to many, and consequently runs into many interesting issues that the other two well-established car manufacturers avoid completely.




Bob Lutz on the Chevy Volt factory floor
The Chevy Volt ($40,000) is lead by the good ol' American car guy Bob Lutz. He's just going about his business, making the necessary sacrifices after the failures of the past, and trying to lead his company competitively into the future. Like Elon Musk, he has been a very public figure recently, popping up on a variety of shows to discuss energy to push the Volt, and you can see why. He's very down-to-earth and likable, and, maybe more importantly, is a conservative who is an avid advocate of electric vehicles. He brings a bit of experience and gravitas to the issue as well, putting him in a position to accurately say things like, "I think Elon Musk and the guys are learning what it means to put automobiles into production. It ain't easy."

The movie shows Tesla as a newcomer with technical issues, quality control problems, and funding limitations, although with great vision and the ability to overcome these obstacles. Nissan and GM, however, bring decades of car production experience to the table and therefore have few technical issues. They also have the easier route of going for the widest possible range of this niche market with traditional family cars that are priced for consumers (albeit consumers more concerned about the environment than putting food on the table). Tesla's inexperience show itself with production delays, underestimated costs ($35 million… I mean $195 million to get to production!), and lack of capital, but their advantage is clearly illustrated in a small meeting with all (yes, all) of their customers, where Elon Musk explains delays and increased prices. With such a high price point, such a positive vision for the future, and such a positive and recognizable name in Elon Musk, the room was filled with willing listeners despite the problems: wealthy activists. Later, Elon Musk's pitch to Governor Schwarzenegger, who mentions off-hand that is would be a great gift for his wife, again defines who comprises his client base.

Celebrity endorsements are nice, but detract from the
image of electric cars being priced and ready for consumers
This trend continues with all three brands as more celebrities are shown purchasing their electric vehicles and taking them for a spin, or just putting in their two cents as advocates for clean vehicles. This somewhat undermines the movie's message that electric vehicles are ready for mass production, and instead shows that this is still very much a wealthy activist market.



Unruly congressman bullying the poor put-upon car guy?
Not how I remember it.
The other point where "Revenge" veers slightly off its track is its over-emotional analysis of the American car industry. Although it can't be ignored that the car industry as a whole has been one of the defining parts of the American economy for nearly 100 years, taking this route simply minimizes the reality that this is a competitive market and EV's have to be better or cheaper or both to take over. The entire segment discussing the failure of GM and the 2008 economic crash make American car makers seem like the victims; hardworking guys who fell on hard times. The truth is rather different: American car makers made a worse product for the same price. Growing up, my family always bought Honda or Toyota because they lasted longer, required less frequent repairs, and got better gas mileage. Slick Bob Lutz blames it on the fact that American drivers choose their cars based on gas prices and prices were low, but that doesn't explain the overall lower quality of most American brands. The general feeling is that they tried, but the market spoke and who are they to argue with that?

If you're interested in a documentary that clearly shows where the industry was, where it is now, and possibly where it's going, this is a good one. It would have been nice to see a little bit more analysis instead of just predictions of how many charging stations and cars will be around in 2015 (they said 1 million of each), such as more comparisons with gas-powered cars from a price and pollution perspective to provide context in the market. There is also very little discussion of the technology, how far it's come, and the practical implications of both its limitations and advantages. On the other hand, more facts and figures may have taken away from what is a succinctly told story, even with its sometimes overdone drama and impending disasters. This is clearly a documentary with a goal: to convince viewers that the electric vehicle is here now and ready for us. I'm encouraged, but not convinced.



The Kaohsiung Solar Stadium

4/23/2012


Coming Soon: Cost and pollution analysis of the Kaohsiung National Stadium

A Shy Beauty: The mostly unknown solar-powered stadium in Kaohsiung is the world's first

The landscape in Taiwan for green energy is quite welcoming, cropping up with many small installations due to government subsidies and incentives put in place in recent years[1]. None of these applications, however, compare to the majesty, beauty, and ingenuity that is the Kaohsiung National Stadium.

The Kaohsiung National Stadium is the proud owner of 8,844
solar panels producing 1.14 million kWh of electricity per year

This incredible feat of engineering took the shape of a dragon with a sprawling tail and  solar scales that reflect and absorb the light of Kaohsiung's sub-tropical fiery sun. Built for the 2009 World Games in only 2 years, the gorgeous stadium would have been a far more visible symbol if not for its similarity to Beijing's roughly concurrent "Bird's Nest" National Stadium, constructed in 2008 for the Olympics. Despite being, in my opinion the far more interesting of the two gorgeous stadiums, Taiwan's version was eclipsed by China's incredibly effective marketing campaign geared to show their rise into world prominence (and possibly also by the lack of a good brand name; "Fiery Death From Above Stadium" anyone?).

The construction of these two buildings is very mysterious if you ignore the context in which they were built: the preparation for a one-time international sporting event. Unlike the west, Asia does not have any sports that consistently draw crowds large enough to fill stadiums of this size, Kaohsiung's and Beijing's having 40,000 and 80,000 seats respectively. Sports like soccer and American football regularly fill stadiums with capacities ranging anywhere from 50,000 to 100,000 seats, justifying their construction economically. The Bird's Nest and the Kaohsiung National Stadium rarely pull crowds over 10,000 and have both become more of a tourist attraction than a functional arena.[2]

The question of whether these are simply for show seems to already be answered, but the Kaohsiung National Stadium's powerplant moonlighting, constantly feeding energy into the grid when it's not being used, begs a closer look. The Bird's Nest employs a few interesting green twists of its own with passive geothermal energy easing heating and cooling costs and a rainwater collection, filtration, and distribution system[3], the latter presumably using a massive quantity of energy. These measures may make a difference in its sustainability as an economic enterprise and its viability as green architecture, particularly the passive geothermal, but this article will focus on the more bold of these two visions. In a world where solar is still looked down upon as an economically unfeasible pipe dream likely ready only after the year 2050, the Kaohsiung stadium's solar production is an economically daring and risky move and makes a statement as a building that actively serves its function and passively feeds the grid.


More Marketable Names for the Kaohsiung National Stadium

Serious Name: "Sun Dragon" Stadium
Hippy Name: "Peace Dragon Warm Earth" Stadium
American Suck-up Name: "Fiery Death From Above" Stadium
Not-So-Subtle Reference Name: "Dragon-Eats-Bird" Stadium

Submit your own!

References:

[1]http://www.chinapost.com.tw/taiwan/national/national-news/2009/06/14/212192/Taiwan-green.htm
[2]http://articles.latimes.com/2009/feb/22/world/fg-beijing-bust22
[3]http://en.beijing2008.cn/cptvenues/venues/nst/headlines/n214370877.shtml

Kaohsiung Solar Boats: Real boats! Just not solar...

4/4/2012

Coming soon: Cost comparison of lithium batteries vs diesel engines

A New Incarnation of the Love Boat
The "Solar" Electric-powered Love Boat skimming through the Love River
The Kaohsiung Love River has long been a popular tourist attraction. It offers bike paths, beautiful views of the city, and boat rides down the river. The new fleet of 5 solar-powered Love Boats arrived in October 2011 to accompany the existing fleet of 15 aging diesel-powered LoveBoats. At first glance, the new boats' appearance embodies everything that they represent: an immaculate, white body with embedded solar panels in the roof and a simple design that leaves no indication of propulsion turbines or unnecessary gadgets. Each boat's propeller is powered by 2 sets of 12 lithium ion batteries with a capacity of 650 kWh of energy, all contributing to a ride that is utterly silent except for the sound of the boat running through the water.




False Advertising

Many thanks to all the boat captains down on the river,
especially 鄭寶川,損振城,and 曾復強。感謝你們!
The crew was incredibly helpful and happy to speak to me about the ins and outs and technical aspects of the boats themselves. Their candid answers quickly led me to realize that there is a grossly misleading aspect to the advertised name “Solar-powered Boat”. Although there ARE solar panels and they DO feed electricity into the boat’s batteries, they supply a disappointing and nearly irrelevant 4% of the boat’s power. According to the crew, this effectively means that the solar panels power the pretty lights on the side and the propulsion system is almost entirely fed from the land-based power sources charging the batteries.


Solar Failure Break Down
This very disappointing showing by the 18 polycrystalline solar panels rated at 175 watts each is actually not surprising when you do the math. On an average day of full use, draining the 650 kWh batteries to 30% capacity (the recommended level) requires about 455 kWh. The solar panels only supply 20.4 kWh of power in a full day of summer sunlight in sunny Kaohsiung in perfect conditions, or about 4.5% of the total power needed, supporting the crew's estimate of 4% in real conditions.



Food for thought: This 18 panel solar array used on the boats, costing somewhere around $8000 USD, provides nearly enough energy to power the average American household's use of 1000 kWh per month[i]. Seems cheap!


The panels certainly look green. Unfortunately, that's about all they do.
So What Would It Take?
To put it in perspective, powering a boat of this size (and not a speedboat by any stretch of the imagination; more like a large, floating golf cart) strictly by 100% solar power would require at least 325 solar panels. This would cover an area of about 420 square meters, or about twice the size of the average American home. This has actually been done before with the entirely solar PlanetSolar boat, which came with the astronomical price tag of $26 million USD[ii] for a 40-person boat, about the same size as the 36-person Love River boat which cost a measly $250,000 USD each. Despite the exploratory and interesting nature of such a boat, the prohibitive cost of such an experiment makes it exactly that; just a trial with little current practical application.

An underside view of the panels from
within the boat
Although the solar panels are clearly still not a good competitor for diesel when it comes to vehicles, lithium batteries are. The old generation of diesel Love Boats and the new generation of so-called "solar" lithium-powered Love Boats are an excellent basis for comparison of lithium and diesel.



Lithium vs. Diesel
      The lithium ion batteries' shabby  
home underneath the deck
Pulling energy from the grid brings up an entirely new and very interesting comparison: the economic efficiency and polluting potential of electric and diesel vehicles. Electric is purported to be perfectly clean and extremely cheap, which it basically is… at the exhaust pipe and at the gas pump. But what about the pollution created at local power plants to produce the energy needed to charge the batteries? How does the cost of diesel compare to those electricity bills? How expensive are EV’s compared to traditional vehicles? Let's take a look.

One of the Love Boats settled for the night,
happily guzzling from the grid




The batteries may not be pretty, but
they're definitely cooler than the
diesel engine!








Carbon Footprint Comparison

A common point of contention is the assumed cleanliness of the electric vehicle. Although EVs were a luxury toy at best in the past, they are now a transportation alternative coming ever closer to the mainstream as new releases like the Nissan Leaf arrive on the market. The solar-powered Love Boats’ 96% battery-drawn energy places it squarely in electric vehicle territory. This means that it is taking energy from the local power grid, aka a mix of power plants including coal, natural gas, and wind among others[iii][iv][v].

The US’s energy source distribution
produces 612g of CO2 per kWh 
Taiwan’s energy source distribution
produces 498g of CO2 per kWh


The worldwide energy distribution
produces 622g of CO2 per kWh




Is the Grid Cleaner Than Diesel?
Compared to diesel, which produces an average of 821g of CO2 per kWh[vi], it is significantly cleaner to feed your vehicles off the grid everywhere, but especially in Taiwan. This disparity can mainly be attributed to the increased use of nuclear and hydroelectric power. Although these energy sources are generally categorized as “clean” energy, it is worth remembering that they create other problems such as the disaster in Fukushima for nuclear and local wildlife pattern disruption and water supply tainting for hydro[vii], calling into question their viability as sustainable technology.




In the case of the Love River Boats, the diesel power produced is again much dirtier. Each trip on the river takes 3-4%* of the battery-powered boats’ 650 kWh battery charge*, or about 22 kWh, while a trip in the diesel boat uses about 3 liters of fuel*. One liter of diesel produces about about 10 kWh of energy[viii], so one trip requires about 30 kWh. This translates into the battery-driven boat producing 11,347g of CO2 to the diesel driven boat’s 24,630g of CO2 per trip, making charging off the grid more than twice as clean as diesel. Also consider that the battery-powered boats are larger, and a similarly sized diesel boat would produce even more CO2.




[i] - http://205.254.135.24/electricity/sales_revenue_price/xls/table5_a.xls
[ii]http://www.polaroid-eyewearstore.com/news/29/CNN%3A-Solar-boat-promotes-path-to-cleaner-fuel.html
[iii] http://www.power-technology.com/projects/hsinta/
[iv] http://www.eia.gov/energy_in_brief/major_energy_sources_and_users.cfm
[v] http://en.wikipedia.org/wiki/World_energy_consumption#Primary_energy
[vi] http://www.stewartmarion.com/carbon-footprint/html/carbon-footprint-kilowatt-hour.html#carbon-dioxide-from-one-kilowatt-hour
[vii] 
[viii] http://ies.jrc.ec.europa.eu/uploads/media/TTW_Report_010307.pdf