Tag: wind

Cartophilia (something to pore over)

Windmap

Click on the image. Wait. Watch and be mesmerised by this visualisation by Hint.fm of current wind flow over the USA. It’s a tremendous way to get a feel for the shape of the weather. Something similarly hypnotic and revealing of weather patterns is the animation of global total precipitable water (that is, atmospheric moisture content) from the Cooperative Institute for Meteorological Satellite Studies at the University of Wisonsin-Madison. I haven’t embedded it because it’s a big animation, but it’s well worth a few bits of bandwidth.

Carbonmap

The Carbon Map is another tour de force of data visualisation — changing the shapes and sizes of countries on a global map to show how they measure on a number of indices: area, population, wealth, historic emissions, current emissions, carbon reserves and so on. The image I’ve grabbed shows the exposure of countries to sea level rise. More about the map and its creation at the Guardian.

Updated to add this amazing NASA animation of global ocean currents over 2005/7. Just look at those whorls spinning off the bottom of Africa…

[youtube]CCmTY0PKGDs[/youtube]

Europe’s renewable power continues to increase

Some encouraging renewable energy news in a recent press release from the European Wind Energy Association.  Their analysis of the 27 National Renewable Energy Action Plans shows that the EU-27 will meet 20.7 % of its 2020 energy consumption from renewables, exceeding the 20% target.

The National Action Plans show that one third (34%) of EU electricity demand will be supplied from renewables by 2020. Wind energy will be the largest contributor, generating 14% of Europe’s total electricity demand in 2020 (494 TWh from 213 GW installed capacity). Other renewables are expected to contribute as follows: 10.5% from hydro, 6.6% from biomass, 2.4% from solar photovoltaic, 0.5% from CSP, 0.3% from geothermal and 0.1% from ocean. Continue reading “Europe’s renewable power continues to increase”

We’ll surpass government forecast says wind energy association

A mild protest from the NZ Wind Energy Association arrived in my inbox recently. It was in response to the Ministry of Economic Development’s latest Energy Outlook forecast, published last week. The Energy Outlook estimates that wind farm capacity will increase from the current 622MW, to around 1,410MW and produce close to 10% of the country’s electricity by 2030. An understatement, says Eric Pyle, CEO of the Wind Energy Association, by a large margin. “…our analysis suggests that wind will be even more important than that, producing 20% of our electricity by then.”

The Energy Outlook forecast has not taken into account the lowering costs of wind power, says Pyle:

“Investigation of wind farms in New Zealand shows that recent installations are already among the lowest cost form of new generation, and international studies reveal that the cost of wind is continuing to fall.”

Nor has it allowed for learning by doing:

“We are also a relatively young industry and increasing our understanding of how to make the most of our abundant wind resource. We are developing better wind farms that can generate even cheaper renewable electricity.”

Politely he suggests that facing backwards is not the best way of looking forward: Continue reading “We’ll surpass government forecast says wind energy association”

What Will Work

Kristin Shrader-Frechette of the University of Notre Dame is rigorous in the presentation of her argument in What Will Work: Fighting Climate Change with Renewable Energy, Not Nuclear Power. In recent times a number of leading environmentalists have concluded nuclear power has to be employed to enable the transition away from fossil fuels. Shrader-Frechette disagrees. There is no “devil’s choice” between expanding nuclear fission and enduring climate change. Nuclear power is not needed, and it’s certainly not desirable.

Not that the author in any way downplays the need to give up the use of fossil fuels. She fully accepts the science of climate change and what is needed to avoid climate-related catastrophe. Objections to taking action are listed in detail and briskly dismissed. The people who deny climate change for profit are categorised and exposed for their role in misleading the public. Among them, sadly, are the American politicians who repay campaign fund donations from fossil-fuel companies by denying or delaying climate change issues.

But Shrader-Frechette rejects the argument that nuclear power is necessary in the energy mix if we are to address climate change quickly enough to be effective. A substantial part of the book is devoted to showing that nuclear energy is not only undesirable but also diverts much-needed investment and government subsidy from energy efficiency and renewable energy development. Far from being part of the solution it gets in the way of solution.

Continue reading “What Will Work”

NZ wind: call for 20% by 2030

My attention was caught by a press release this week from the NZ Wind Energy Association (NZWEA) announcing the results of an Infometrics report they had commissioned on the likely economic effect for New Zealand of an increase in wind power by 2030 to the point that it supplied 20 per cent of the country’s electricity. The NZWEA considers this a realistic target. The report came up with some interesting figures.  Compared with the more modest expectations of the Ministry of Economic Development that wind might supply 8 per cent of the electricity in 2030 there was clear economic benefit for the country in the 20 per cent figure.

Continue reading “NZ wind: call for 20% by 2030”