Tag Archives: roger andrews

Wind Blowing Nowhere

In much of Europe energy policy is being formulated by policymakers who assume that combining wind generation over large areas will flatten out the spikes and fill in the troughs and thereby allow wind to be “harnessed to provide reliable electricity” as the European Wind Energy Association tells them it will: Continue reading

Posted in Energy, Political commentary | Tagged , , , , , , , | 86 Comments

Blowout Week 55

The verdict is in. 2014 was the warmest year on record: Or was it?

Stories on oil prices, OPEC, layoffs in the petroleum industry, Russia losing its natural gas clout in Europe, France wanting more nuclear plants, blades falling off wind turbines in Scotland, the US Senate voting on whether climate change is real, energy storage using methane and a hybrid wind/solar generator below the fold: Continue reading

Posted in Blowout | Tagged , , , , , , , , , , | 35 Comments

The Half Life of CO2 in Earth’s Atmosphere – Part 1

The fact that both single exponential decline and multi-time constant models of emissions can be made to fit atmospheric evolution of CO2 means that this approach does not provide proof of process. Either or neither of these models may be correct. But combined, both of these models do provide clues as to the rate of the CO2 sequestration processes. Continue reading

Posted in Climate change | Tagged , , , , , | 58 Comments

CO2 in, CO2 out

by Roger Andrews Some time ago I posted a graph showing how the IPCC’s 21st century temperature projections for the “worst case” RCP85 emissions scenario could be replicated almost exactly using the IPCC’s CO2 radiative forcing estimates for the scenario, … Continue reading

Posted in Climate change | Tagged , , , , , | 47 Comments

Large scale grid integration of solar power – many problems, few solutions

It would be roughly three times cheaper for Germany to add low-carbon generation capacity by building nuclear rather than CSP plants, and nuclear delivers power at a steady rate without the need for storage and whether the sun is shining or not. Continue reading

Posted in Energy | Tagged , , , , , , | 137 Comments

How to cut emissions, and how not to

The world’s efforts to cut greenhouse gas emissions began with the United Nations Framework Convention on Climate Change in 1992, were formalized in the Kyoto Protocol in 1997 and have since mutated into the hundreds of “XX percent of renewables by 20YY” targets adopted by groups of countries, individual countries and regional jurisdictions. They have spawned, among other things, innumerable bureaucracies, countless climate conferences, forests of wind turbines, patchwork quilts of solar panels and a billion-dollar-a-day climate change industry. Continue reading

Posted in Climate change, Energy | Tagged , , , , | 44 Comments

Renewable Energy Growth in Perspective

Renewable energy, particularly wind and solar, continues to set records for electicity generation and installed capacity in many parts of the world, and as shown in Figure 1 wind and solar growth in recent years has indeed been quite spectacular Continue reading

Posted in Energy | Tagged , , , , , , , | 104 Comments

Do We Have Enough Uranium To “Go Nuclear”?

Known uranium resources therefore top out at 9.2 million tons. How long do they last under the nuclear decarbonization scenario? Until 2048. They will in fact be exhausted before the decarbonization target is met. Continue reading

Posted in Energy | Tagged , , , , , , | 115 Comments

Estimating Global Solar PV Load Factors

The scatter around the mean (red line) can be attributed to differences in the type and quality of the installation – tracking arrays, optimally-aligned fixed panels, non-optimally aligned fixed panels etc. and to variations in cloudiness between countries/regions at the same latitude. Continue reading

Posted in Energy | Tagged , , , | 33 Comments

How Much Windpower can the UK Grid Handle?

This guest post examines the impact of different levels of wind power penetration on the security of the UK grid. Continue reading

Posted in Energy | Tagged , , , , | 31 Comments