Bjorn Lomborg Profile picture
Author of 'Best Things First', 'False Alarm', and 'Skeptical Environmentalist', President Copenhagen Consensus: smart solutions through economic prioritization

Jan 21, 2022, 10 tweets

We're told solar and wind future

But when wind is not blowing and sun not shining?

Batteries!

Yet

The world uses 51GWh/minute and has 64GWh of battery storage: enough for 1m:15s

2030: 10m:24s

After that, need 100% backup, mostly fossil fuels

woodmac.com/reports/power-…

Batteries won't save the US

The US has batteries able to supply 3:24 of average electricity consumption now and about 10 minutes in 2030

Batteries won't save Asia

Asia has batteries able to supply just 31 seconds of average electricity consumption now and about 10 minutes in 2030

Batteries won't save Europe

Europe has batteries able to supply a little more than 1 minute of average electricity consumption now and about 12 minutes in 2030

Lots of people suggesting we can fix this

Yes, but it makes 𝗿𝗲𝗻𝗲𝘄𝗮𝗯𝗹𝗲𝘀 𝗰𝗼𝘀𝘁𝗹𝗶𝗲𝗿 because we need to pay for backup

More realistic solar costs are 4-7x higher

from cheap but very unreliable
to very expensive (and only less unreliable)

lazard.com/perspective/le…

Most people don't appreciate that

most renewables (RE) to date are only possible because they are backed up by modern fossil (MF) fuel tech

(such as Combined Heat and Power and Integrated Gasification Combined Cycle)

sciencedirect.com/science/articl…

People suggest that "it is always windy somewhere", but

1) not sufficient throughput between regions

2) European 2021 wind drought showed us it can be less windy almost everywhere

depleting other sources of energy and end up costing us a fortune

ft.com/content/d53b58…

How much are 3-10 minutes of electricity storage?

Not much

Every year in Germany, there are more than 5 days (7,320 minutes) with almost no wind, and every 10 years almost 8 days without wind (11,160minutes)

iopscience.iop.org/article/10.108…

Perhaps not surprisingly, most people like power 24/7

Yet, most climate policy seems to be driven by crossing our fingers:

just build lots of wind and solar
& hope to fix intermittency later

But not enough batteries

And leads to much higher prices

reuters.com/markets/commod…

The first slide says 10.6 minutes, but it should be 10.4 minutes or 10m:24s

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