Skip to main content

 


COVID Wipes out Renew  

In the middle of the Xmas week we got hit by COVID- very badly. So we have had to delay the release, planned for Jan 1st, of Renew 267 and Renew On line 167 while we recover. We are told two weeks should do it. Same for the weekly Renew Extra.  Back as soon as we can. Our apologies, but it is a pretty grim experience  And we are feeling pretty rough...



Comments

Post a Comment

Popular posts from this blog

Global Energy Outlooks - BP v Jacobson

The share of renewables in global primary energy may increase ‘from around 10% in 2019 to between 35-65% by 2050, driven by the improved cost competitiveness of renewables, together with the increasing prevalence of policies encouraging a shift to low-carbon energy’. So says BP in its latest Global Energy Outlook . It does see wind and solar accounting ‘for all or most of the growth in power generation’, but even at the top of the range quoted, it still falls a lot short of the renewable ‘100% of total energy’ scenarios that have been produced by some academics in recent years.  To fill the gap to zero net carbon, BP sees wide-scale use being made use of carbon capture technology, as well as some nuclear power. And it says ‘Natural declines in existing production sources mean there needs to be continuing upstream investment in oil and natural gas over the next 30 years’. You won’t find much support for these fossil and nuclear options in the scenarios produced by Stanford Universi...
2 comments
Read more

Renewables beat nuclear - even with full balancing included

A new Danish study comparing nuclear and renewable energy systems (RES) concludes that, although nuclear systems require less flexibility capacity than renewable-only systems, a renewable energy system is cheaper than a nuclear based system, even with full backup: it says ‘lower flexibility costs do not offset the high investment costs in nuclear energy’.  It’s based on a zero-carbon 2045 smart energy scenario for Denmark, although it says its conclusions are valid elsewhere given suitable adjustments for local conditions. ‘The high investment costs in nuclear power alongside cost for fuel and operation and maintenance more than tip the scale in favour of the Only Renewables scenario. The costs of investing in and operating the nuclear power plants are simply too high compared to Only Renewables scenario, even though more investment must be put into flexibility measures in the latter’.  In the Danish case, it says that ‘the scenario with high nuclear implementation is 1.2 bil...
Post a Comment
Read more

The IEA set out a way ahead

The International Energy Agency's new Global Energy Roadmap sets a pathway to net zero carbon by 2050, with, by 2040, the global electricity sector reaching net-zero emissions. It wants no investment in new fossil fuel supply projects, and no further final investment decisions for new unabated coal plants. And by 2035, it calls for no sales of new internal combustion engine passenger cars. Instead it looks to ‘the immediate and massive deployment of all available clean and efficient energy technologies, combined with a major global push to accelerate innovation’.  The pathway calls for annual additions of solar PV to reach 630 GW by 2030, and those of wind power to reach 390 GW. All in, this is four times the record level set in 2020. By 2050 it wants about 24,000 GW of wind and solar to be in place. A major push to increase energy efficiency is also seen as essential, with the global rate of energy efficiency improvements averaging 4% a year through 2030, about three times the av...
44 comments
Read more