Home

The Future of Energy

Any predictions of the future are almost certainly going to prove to be wrong.

So I'm not going to attempt to predict the future of energy here. I am going to list those components of our present energy systems that are changing and give a rough guide to the rate of those changes. The rates of the changes will themselves change with time, but we can project from the present rates of change to get at least some clue of what the future of energy will be.

This page is written from an Australian perspective, but has global application.

This page written 2018/03/18 – ©
Contact: email daveclarkecb@yahoo.com (David K. Clarke)
 
Home


Google search Ramblings

 
A winery in the Clare Valley
Winery
In South Australia wineries have been early adopters of solar PV
The scene at early 2018...
  • On-shore wind power continues to grow steadily world wide (until a few years ago the rate of growth was exponential, for the last few years it has only been linear, although the rate of growth is at record rates in Australia at the present);

  • Off-shore wind power, while much smaller than on-shore, grows at exponentially increasing rates world-wide (off-shore wind farms cost around twice as much as on-shore, but many nations do not have the abundant excellent on-shore sites available to them that Australia has);

  • Solar photo-voltaic installation continues its exponential growth;

  • Solar thermal, with energy storage, while small compared to solar PV, was growing at an exponential rate;

  • The number of electric vehicles (which do not need fossil fuels) was increasing exponentially;

  • High-capacity battery manufacture was a huge and fast growing industry;

  • Pumped hydro energy storage installations were increasing quickly world-wide;

  • Super-capacitor development was looking very promising as another way of storing energy;

  • Energy to hydrogen installations or studies were taking place in many places;

  • Technology development for converting hydrogen to ammonia and back was making renewable energy export increasingly viable (there was already a well developed liquid ammonia shipping industry);

  • Distributed energy resources where becoming much more common;

  • Demand-side-management was being recognised as of fundamental importance in any future energy system (I've written more on this on another page on this site);
All these were making fossil fuels in general, and coal in particular, less necessary for the world energy industries. Consequently the coal industry was facing a terminal decline.

Nuclear energy

Nuclear was unattractive at least in part because its cost had increased while the costs of renewable energy had greatly decreased. For example, in August 2017 two partly built nuclear power stations were abandoned in South Carolina, USA, following huge cost blowouts. On top of this Nuclear has problems with:
  • waste disposal;
  • long lead times needed for planning, construction and commissioning;
  • possible access by terrorists to nuclear materials;
  • nuclear power stations would be tempting targets in war time and if bombed would result in huge pollution;
  • susceptibility to natural disasters such as earthquakes and tsunamis.


Lazard's analysis

 

The future of the planet is all well and good, but it is money that moves those in power

It has been known for decades that the burning of more and more fossil fuels would lead to environmental disaster, but this was not sufficient to move those who run the world to change to renewable energy.

Now that wind and solar power are cheaper than fossil fuels we will see more definite action.

Lazard's home page describes the business as: "A global firm, built over generations, on a foundation of client service. Lazard has a simple and powerful model, focused on two businesses: Financial Advisory and Asset Management."

In 2017 Lazard produced its latest (at the time of writing this) Levelized Cost of Energy Analysis (Version 11.0). The figures in the table below were extracted from that report; the costs are for the USA, are in US dollars and are for utility-scale installations. I have selected only the figures for on-shore wind, solar PV and their main competitors in non-renewables: gas combined cycle, coal and nuclear.

Energy sourceCost range in 2017Change from 2009-2017
Wind$30-$6067% decrease
Solar$43-$5386% decrease
Gas combined cycle$42-$7827% decrease
Coal$60-$1438% decrease
Nuclear$112-$18320% increase

Lazard's analysis indicated that in Australia, solar was a little less expensive than in the US and gas power a little more expensive.



Home
Top
 
Home
Top