Home » Posts tagged 'solar photovoltaic'

Tag Archives: solar photovoltaic

Olduvai
Click on image to purchase

Olduvai III: Catacylsm
Click on image to purchase

Post categories

Post Archives by Category

The Hidden Costs of Solar Photovoltaic Power

The Hidden Costs of Solar Photovoltaic Power

Introduction

Despite many optimistic predictions, solar photovoltaic (solar PV) power still represents only a small fraction of the global electricity supply as of 2020. More than two decades of nearexponential growth and investment in solar PV development have taken place, yet the amount of fossil fuels being burned for power is still increasing. [1] This apparent paradox has been attributed to a variety of economic or political issues, but a critically important factor may be missing from the discussion.

All modern technologies are dependent upon the supply of fossil fuels and fossil energy that made them possible. Similarly, every step in the production of solar PV requires an input of fossil fuels – as raw materials, as carbon reductants for silicon smelting, for process heat and power, for transportation, and for balance of system components. Regardless of any intentions, no quantity of banknotes or any number of mandates can yield a single watt of power unless a significant expenditure of raw materials and fossil energy takes place as well.

Therefore, the author of this article invites all interested parties including environmentalists, consumers and policy makers to consider the wider environmental impact, and the great debt of resources that actually must be paid before a PV system can be installed at any utility, workplace, or home. If we wish to recognize the hidden costs of this highly engineered industrial technology, we must first examine the non-renewable reality of the PV manufacturing process itself. To be even more realistic, we must also consider the additional consequences resulting from the fossil-fuel- powered global supply chains that are necessary for the mining, production, and implementation of PV power systems.

…click on the above link to read the rest of the article…

Intermittent Renewables Can’t Favorably Transform Grid Electricity

Intermittent Renewables Can’t Favorably Transform Grid Electricity

In fact, I have come to the rather astounding conclusion that even if wind turbines and solar PV could be built at zero cost, it would not make sense to continue to add them to the electric grid in the absence of very much better and cheaper electricity storage than we have today. There are too many costs outside building the devices themselves. It is these secondary costs that are problematic. Also, the presence of intermittent electricity disrupts competitive prices, leading to electricity prices that are far too low for other electricity providers, including those providing electricity using nuclear or natural gas. The tiny contribution of wind and solar to grid electricity cannot make up for the loss of more traditional electricity sources due to low prices.

Leaders around the world have demanded that their countries switch to renewable energy, without ever taking a very close look at what the costs and benefits were likely to be. A few simple calculations were made, such as “Life Cycle Assessment” and “Energy Returned on Energy Invested.” These calculations miss the fact that the intermittent energy being returned is of very much lower quality than is needed to operate the electric grid. They also miss the point that timing and the cost of capital are very important, as is the impact on the pricing of other energy products.

…click on the above link to read the rest of the article…

Don’t be Fossil Fooled – It’s time to say goodbye.

Don’t be Fossil Fooled – It’s time to say goodbye.

It’s time to make the call – fossil fuels are finished. The rest is detail.

The detail is interesting and important, as I expand on below. But unless we recognise the central proposition: that the fossil fuel age is coming to an end, and within 15 to 30 years – not 50 to 100 – we risk making serious and damaging mistakes in climate and economic policy, in investment strategy and in geopolitics and defence.

I’ve written previously about 2015 being the year the “Dam of Denial” breaks,referring to the end of denial that climate change requires urgent, transformational economic change. While related, this is different. It is now becoming clear we’ve reached a tipping point where fossil fuels will enter terminal decline, independently of climate policy action.

Given climate policy action is also now accelerating, fossil fuels are double dead. To paraphrase Douglas Adams, “So long and thanks for all the energy”.

I understand this is a very big call, especially in regards to timing. There are many drivers that lead me to this conclusion but it’s their integrated impact that makes me so confident.

Thinking of energy like you think about an iPhone

The first and most important one is the argument I first made early in 2014 in a paper with Giles Parkinson from RenewEconomy.com.au. For over a hundred years, energy markets have been defined by physical resources, supplied in large volumes by large, slow moving companies developing long life assets in the context of slow moving shifts in markets.

The new emerging energy system of renewables and storage is a “technology” business, more akin to information and communications technology, where prices keep falling, quality keeps rising, change is rapid and market disruption is normal and constant. There is a familiar process that unfolds in markets with technology driven disruptions. I expand on that here in a 2012 piece I wrote in a contribution to Jorgen Randers book “2052 – A Global Forecast” (arguing the inevitability of the point we have now arrived at).

 

…click on the above link to read the rest of the article…

Olduvai IV: Courage
Click on image to read excerpts

Olduvai II: Exodus
Click on image to purchase

Click on image to purchase @ FriesenPress