*take nothing for granted!
Unless otherwise indicated all photos © Richard McKie 2005 - 2015

Who is Online

We have 103 guests and no members online

Translate to another language

 

 August 2012 (chapters added since)

 

 

Introduction

 

The present government interventions in electricity markets, intended to move the industry from coal to renewable energy sources, are responsible for most of the rapidly rising cost of electricity in Australia.  These interventions have introduced unanticipated distortions and inefficiencies in the way that electricity is delivered.

Industry experts point to looming problems in supply and even higher price increases.

A 'root and branch' review of these mechanisms is urgently required to prevent ever increasing prices and to prevent further potentially crippling distortions.

If you currently pay an electricity bill or use electricity in your place of employment it is worth gaining an understanding of the key issues surrounding the generation and transportation (transmission) of electricity.

The electricity price we pay our retailer is made up of a number of different components.  These are the cost of:

  • Transmission and local distribution - local distribution is by far the largest part of the total grid costs - but large transmission projects cause incremental price increases that increase the effective electricity price in your bill;
  • wholesale electricity from the National Electricity Market (NEM) - incorporating the cost of fuel and thus the impact of the new carbon tax;
  • renewable energy certificates - once known as REC's but now of two kinds: Small-Scale Technology Certificates (STCs) and Large-scale Generation Certificates (LGCs);
  • the retailer's costs and overheads (marketing) - this includes additional costs associated with local feed-in generation; principally from rooftop photo-voltaic (PV) solar.

 

Although some elements of the Australian electricity market operate competitively, there are a number of elements that do not; and some cannot. 

In particular, the duplication or multiplication of 'wires and poles' to provide competition in the grid is not considered desirable; both on the grounds of economies of scale and issues around actual physical space required to run competitive wires.  This sector is therefore heavily regulated and often in government hands. 

The retail sector, while nominally open to multiple competitors, is complicated by one of these retailers usually also being the owner of the local distribution infrastructure.

But generation is generally regarded as a competitive sector, with over 260 large generators contributing to the NEM. 

The carbon tax impacts the effective cost of fuel for the largest of these generators.  Initial estimates put the tax pass-through cost to consumers at around 2 cents per kWh.  But as I will point out this is not presently being felt evenly across all carbon based fuels.  There is not a 'level playing field'; because some competitors are enjoying an unfair advantage. 

In addition there are distortions introduced by the LGC's.  Together with other government interventions, discussed below, these are distorting the marketplace in generation.  It is widely reported that investment decisions required for ongoing electricity security have been deferred or even abandoned.  Very large plant with long lead-times is involved.  This is likely to result in a serious shortfall in capacity in the next decade or two.

Renewable energy certificates are already an important factor in pre-tax price increases and are forecast to become a major part of your electricity bill in future.

Maintaining and expanding local distribution infrastructure is a big part of your bill - as new suburbs are built distribution is increasingly underground raising the overall cost to all consumers.

Transmission grid capital cost and losses are on the increase with the introduction of relatively remote and very variable wind generation and this too pushes up the effective cost of electricity in the NEM.

Mains electricity from the grid comes from a multitude of energy sources.  Electricity is simply a convenient way of transporting that energy in a way that is easily converted back to mechanical energy, heat, light, and the motive force to drive electronics. 

I argue that it is urgent that the renewable energy target is absorbed into a single carbon reduction initiative, in which no industry sector or consumer is exempt or privileged, similar to that originally proposed by Federal Treasury and the Garnaut committee in 2010.

If you don’t understand where electricity comes from; how it is transmitted or potential technology 'breakthroughs', still in the laboratory, there is a short (simplified) primer on this website.  

The ultimate competitor, if the grid fails to supply or if it becomes too expensive, is 'self generation'.   I also briefly examine the self generation option in the 'primer'.  Read More… 

 

Comments  

# Greg Stace 2012-09-12 14:02
Richard,

I reckon you can produce solar in Australia domestically at around 15c or lower. Installation price at a bit under 2K a kWp and over 1800 hours of sunshine in some places means its well and truly below. Also Aussie electricity is pretty pricey, Dutch business can get it at around 9c a kWh and Swiss ones at 11c (Aussie cents). Zurich, Lichtenstein and Bern household average annual electricity bills are under $200 (retail electricity there is 12c).

check out the table at the bottom of this. http://es.wikipedia.org/wiki/Fotovoltaica to give a price per kWp based on 4% cost of capital, 1% annual maintenance fee over 20 years, depreciation of the equipment over 30 years.
Reply | Reply with quote | Quote

Add comment


Security code
Refresh


    Have you read this???     -  this content changes with each opening of a menu item


Travel

Poland

Poland

 

 

Berlin

We were to drive to Poland from Berlin.  In September and October 2014 were in Berlin to meet and spend some time with my new grandson, Leander.  But because we were concerned that we might be a burden to entertain for a whole month-and-a-half, what with the demands of a five month old baby and so on, we had pre-planned a number of side-trips.  The last of these was to Poland. 

To pick up the car that I had booked months before, we caught the U-Bahn from Magdalenenstraße, close to Emily's home in Lichtenberg, to Alexanderplatz.  Quick - about 15 minutes - and easy.

Read more ...

Fiction, Recollections & News

The Time Lord

 

 

 

For no apparent reason the silver haired man ran from his companion, shook a tree branch, then ran back to continue their normal conversation. It was as if nothing had happened. 

Bruce had been stopped in peak hour traffic in the leafy suburban street and had noticed the couple walking towards him engaged in good humoured argument or debate.  Unless this was some bizarre fit, as it seemed, the shaken tree branch must be to illustrate some point.  But what could it be?

Just as the couple passed him the lights up ahead changed and the traffic began to move again. 

Read more ...

Opinions and Philosophy

Issues Arising from the Greenhouse Hypothesis

This paper was first written over 20 years ago - little has changed.

Except of course, that a lot of politicians and bureaucrats have put in a lot of air miles and stayed in some interesting places around the world like Kyoto, Amsterdam and Cancun. 

And in the interim, wind turbines have become larger and more economic.  Wind power is discussed in more detail elswhere on this website.


 

Climate Change

Issues Arising from the Greenhouse Hypothesis

 

Climate change has wide ranging implications for the World, ranging from its impacts on agriculture (through drought, floods, water availability, land degradation and carbon credits) mining (by limiting markets for coal and minerals processing) manufacturing and transport (through energy costs) to property damage resulting from storms.  The issues are complex, ranging from disputes about the impact of human activities on global warming, to arguments about what should be done and the consequences of the various actions proposed.  The following paper explores some of the issues and their potential impact.

  Read more ...


Terms of Use                                           Copyright