Tuesday, February 18, 2020

Thanks to the nuclear-energy advocates, we get the dirt on wind and solar

The environmentalist ideology is coming into contradiction with itself. The unprecedented scale of destruction of the natural landscape by 30 000 gigantic wind turbines has brought a growing realization, that reliance on renewable energy is by no means friendly to the environment – and not necessarily safe. 
People don’t want to live near wind turbines, because of unpleasant noise and possibly dangerous infrasound emissions, disturbing optical effects, reports of fires, broken-off turbine blades flying through the air, ice throws, etc. And the dead birds.

Sunday, February 9, 2020

Nuclear backfires, Japan turns to coal

[after Fukushima accident] total electricity consumption dipped only slightly. Where did Japan make up the difference? Fossil fuels. These went from 62% of Japan’s electricity production before the disaster to about 80% after...

...the country is still on track to add more than 20 coal plants in the next five years. These plants are expected to emit as much carbon as all the passenger cars in the U.S.

Wednesday, January 8, 2020

Non-exhaust PM pollution just as bad for electric cars

However, this literature review suggests that electric vehicles may not reduce levels of PM as much as expected, because of their relatively high weight. By analysing the existing literature on non-exhaust emissions of different vehicle categories, this review found that there is a positive relationship between weight and non-exhaust PM emission factors. In addition, electric vehicles (EVs) were found to be 24% heavier than equivalent internal combustion engine vehicles (ICEVs). As a result, total PM10 emissions from EVs were found to be equal to those of modern ICEVs. PM2.5 emissions were only 1e3% lower for EVs compared to modern ICEVs. Therefore, it could be concluded that the increased popularity of electric vehicles will likely not have a great effect on PM levels. Nonexhaust emissions already account for over 90% of PM10 and 85% of PM2.5 emissions from traffic

Tuesday, December 31, 2019

#Renewables are just adding to the fire

What politicians, economists, and academic book publishers would like us to believe is that the world is full of limitless possibilities. World population can continue to rise. World leaders are in charge. Our big problem, if we believe today’s models, is that humans are consuming fossil fuel at too high a rate. If we cannot quickly transition to a low carbon economy, perhaps based on wind, solar and hydroelectric, the climate will change uncontrollably. The problem will then be all our fault. The story, supposedly based on scientific models, has almost become a new religion.

Study shows dams not worth the cost

A brisk building boom of hydropower mega-dams is underway from China to Brazil. Whether benefits of new dams will outweigh costs remains unresolved despite contentious debates. We investigate this question with the “outside view” or “reference class forecasting” based on literature on decision-making under uncertainty in psychology. We find overwhelming evidence that budgets are systematically biased below actual costs of large hydropower dams — excluding inflation, substantial debt servicing, environmental, and social costs. Using the largest and most reliable reference data of its kind and multilevel statistical techniques applied to large dams for the first time, we were successful in fitting parsimonious models to predict cost and schedule overruns. The outside view suggests that in most countries large hydropower dams will be too costly in absolute terms and take too long to build to deliver a positive risk-adjusted return unless suitable risk management measures outlined in this paper can be affordably provided. Policymakers, particularly in developing countries, are advised to prefer agile energy alternatives that can be built over shorter time horizons to energy megaprojects.

Thursday, December 5, 2019

Solar panels an ecological nightmare

Total e-waste—including computers, televisions, and mobile phones—is around 45 million metric tons annually. 
...By comparison, PV-waste in 2050 will be twice that figure.

...At the same time, demand for everything from sand to rare and precious metals continues to rise. While supplying only about 1 percent of global electricity, photovoltaics already relies on 40 percent of the global tellurium supply, 15 percent of the silver supply, a large portion of semiconductor quality quartz supply, and smaller but important segments of the indium, zinc, tin, and gallium supplies. Closing the loop on these metals and embracing circular economy concepts will be critical to the industry’s future.


Tuesday, November 26, 2019

Wind turbines are neither clean nor green, and they provide zero global energy

Here’s a quiz; no conferring. To the nearest whole number, what percentage of the world’s energy consumption was supplied by wind power in 2014, the last year for which there are reliable figures? Was it 20 per cent, 10 per cent or 5 per cent? None of the above: it was 0 per cent. That is to say, to the nearest whole number, there is still no wind power on Earth.