Recently I got asked by Reuters to comment on Obama’s energy plan. Here’s a quote from Scientific American:
Obama said his budget proposal to be released on Thursday will invest $15 billion a year on wind and solar power, advanced biofuels, clean coal and American-built cars and trucks that are more fuel efficient.
He also said thousands of miles of power lines would be built to carry new energy to cities and towns.
“Obama is quite right to be directing concerted investment in renewable energy and transmission infrastructure, to bring these new wind and solar power sources from where it is generated to where it is used,” said Barry Brook of the University of Adelaide, in South Australia state.
But Brook said while putting a price on carbon was necessary, it was not enough.
“Will the world’s future energy mix be entirely renewable, and is it appropriate to frame energy alternatives in narrow terms? I think not,” said Brook, director of the Research Institute for Climate Change and Sustainability in Adelaide.
A few weeks before, I’d also said this:
In South Australia, for instance, the grid needs to be overhauled to allow proposed wind farms along the coast to be connected.
The state’s north also has large potential for geothermal power generation but a lack of transmission lines to carry the power to New South Wales, Victoria and Queensland states has hobbled major investment.
“One of the best examples I can think of is to connect transmission lines from Queensland, South Australia to the East Coast grid interconnector and even the East Coast to the West over the Nullarbor Plain,” said Barry Brook, director of the Research Institute for Climate Change and Sustainability at the University of Adelaide.
“By doing that you have provided a link by which a whole bunch of renewables can come on to the grid where it can’t right now, and that it is one of the major limitations for investment,” Brook said, calling also for greater focus on energy efficiency.
In this context about grid infrastructure, the guest post below is relevant. It’s written by a friend of mine, Stewart Taggart. Sure, he loves to crank up the hyperbole (heck, he’s an American, what do you expect?), but he’s got some great ideas, some of which might actually turn into reality. The value of UHVDC tranmission infrastructure is potentially huge — for both worldwide grid unification and load balancing and for getting power from remote sites (e.g., for desert-based solar thermal plants and offshore wind) to high demand areas, OR to remote areas (e.g., for piping power from Integral Fast Reactors from nuclear club countries to developing or ‘unstable’ nations who might not have access to nuclear power for a variety of technical or political reasons).
Stewart Taggart is a director of Acquasol Infrastructure Ltd., a developer of environmentally-friendly power and water solutions building a municipal-scale solar desalination plant in South Australia’s Upper Spencer Gulf. Stewart (or Taggart, depending on your style) is also founder/administrator of DESERTEC-Australia, DESERTEC-USA and DESERTEC-China. DESERTEC promotes the concept of “Clean Power From Deserts.
It’s the grid’s equivalent of Internet broadband.
Known as Ultra-High Voltage Direct Current (UHVDC), UHVDC could end of the ”tyranny of distance’ in electricity transmission. The positive global implications are hard to overstate.
Development and deployment of UHVDC could mean geothermal, wind, concentrating solar power and other clean energy sources are no longer hobbled by distance from existing transmission infrastructure.
In the short term, UHVDC could mean lower greenhouse gas emissions. In the medium term, UHVDC could mean increased cross-border trading in electricity, lowering prices and increasing grid reliability. Over the long term, UHVDC could increase global political stability by deepening multilateral energy interdependency.
UHVDC combines two existing ‘off-the-shelf’ efficiencies and combines them. The first is direct current (DC) power. DC transmits electricity over long dstances more efficiently than alternating current (the kind used by consumer devices). The second is high voltage. By pumping up voltage, more electricity can be transmitted across a given line.
The current leading edge of UHVDC development represents just an incremental step forward, raising new cable capacity (to be deployed in China) to 8,000MW and 800kv from previous maximums of 6,000MW and 500kv. Already, some envisage 10,000MW UHVDC cables being developed to service proposed North Sea wind farms.
Rising global per capita energy usage, the integration of China and India to the global economy, aging current global electricity transmission infrastructure and the need to combat climate change all point to increasing UHVDC deployment in coming years.
The good news is that this is happening at a time when the world electricity system needs a major upgrade. Nearly US$30 trillion must be spent on energy infrastructure globally before 2030 to avoid chronic blackouts, according to the International Energy Agency. The lion’s share of that money will go to generation and transmission infrastructure, the IEA estimates.
China is staking a claim to leadership in UHVDC power. The Chinese government is laying huge (6,000MW), long distance (2,000 kilometer) UHVDC power lines from country’s western hinterlands, where hydro and solar resources exist, to its eastern cities. Bigger UHVDC cables (8,000MW) are expected soon. Having China develop this technology could ultimately represent a gift of China to the world as significant as China’s previous contributions: paper, gunpowder and the compass.
China has plans to lay dozens of UHVDC power lines from west to east. This will catalyse the UHVDC industry and the rest of the world should watch with approval and encourage China. If China develops a competitve UHVDC industry, China’s economy will be able to satisfy more of its internal electricity needs from cleaner sources of electricity than coal.
But best of all, China’s development of a UHVDC industry could hasten the day when a ‘Pan-Asian Energy Superhighway‘ could be built connecting China and Australia. Such an energy highway would encourage development of large scale renewable resources in the Asian region, increasing cross-border trade in ‘green’ energy and deepening multilateral energy dependency, thereby enhancing geopolitical stability.
Encouraging China to develop a global-competitive UHVDC industry will be immensely positive for the world. No other country can afford it at this time. Meanwhile, China’s own huge infrastructure needs make such investment largely unavoidable.
If China builds up a UHVDC industry while the west concentrates on economic reform and reconstruction following the credit crisis, everyone comes out ahead. That’s because large-scale cross-border investments in UHVDC power lines could be considered sometime after 2015. This in turn would spark a virtuous global cycle of increased development of renewable energy, lower electricity costs and reduced greenhouse gas emissions.
Keep an eye on Chinese UHVDC. It could end up as the 21st Century’s “killer application” when it comes to combating climate change.
China’s State Grid eyes to triple UHV lines by 2012
China Moves Ahead with Economical Ultra-High Voltage Transmission Lines
Chinese Utility Tries to Join Electricity Pioneers
State Grid To Invest $38 Billion In ’09; Growth To Slow Sharply
Energy efficient Ultra High Voltage: the future of electricity transmission
Ultra High Voltage DC Systems
Central China Shanxi Province to Invest $3.2 Billion in Power Sector in 2009
Locating lines to transmit energy vexes officials
RWE Founds New Unit To Run Ultra-High Voltage Grid
KEMA stud calls for 10000MW cables to be developed for North Sea and European offshore networks
DESERTEC promotes development of solar and other renewable energy resources from desert regions. Please visit our various websites: