An Enercon turbine recently installed in Canada. These are considered the highest quality turbine made in the world, and you can't buy them for installation in the US. These feature tall towers so that the turbines can be installed in forests, where trees produce significant ground level turbulence and resistance to wind flow. And the owner of Enercon is a really big fan of Feed-In Tariffs - see
http://en.wikipedia.org/wiki/Feed-in_tariff
While some will argue that the "versus" is inappropriate, well, that's their right to have an opinion, and a belief or two. How's the expression go… you are entitled to your own opinion, but not your own facts...But, perhaps it depends on what the goal is - is it to drastically cut the CO2 pollution going down on our planet, or is it to just make a statement? Are "CO2 Sin Taxes" a moralistic idea - that we should punish "improper" behavior? After all, it is a bit on the sinful side to pollute our only atmosphere with so much CO2 that we drastically alter our climate. Actually, significant climate alteration is quite a feat, but now that we as a species have proved that we can do this (and it has been proved beyond any reasonable doubt, with only the deluded or terminally ignorant professing disbelief in the Greenhouse Gas pollution and Global Warming relationship..), what now? And one way to discourage sinning is supposedly to tax the beans out of that sinning…
But, the stakes are really high in this case, so maybe we can do a bit of math to figure out whether Feed-In Tariffs (FITs) are a better way to allow us humans to have access to energy and still not warp out our planet's climate out of shape than are Sin Taxes in their various guises - "carbon taxes", "carbon prices", "carbon fees", "Cap'N Trade", "Cap'N Dividend", The "CO2 Trash Disposal Indulgences". And for starts, lets keep the discussion limited to electricity, as there really is no renewable replacement for liquid fuels - at least at the scale of present day usage in this country. As for heat - that's got to be provided by electricity (mostly via heat pumps) and solar thermal means, as well as by needing less of it because we get more efficient in using it. But even in an era where each year has averaged a bit warmer than the last one for the last 20 years, it can still get really cold in a lot of our country at times - cold enough to kill if you don't have heat, or kill to get heat if that's what it takes to get it - so heat when it is needed is important.
A Feed-In Tariff is a renewable energy pricing system that has three working parts (and FITs work better than any other system tried to date in delivering renewable energy). The first is that renewables get priority access to the grid, and that pollution based energy has to wait in line and can only be sold into the grid when no renewable energy is available for delivery. The priority grid access is the mechanism that allows for the replacement of all pollution based electricity now provided. The second part is that renewables are allowed to be sold into the grid at a long term fixed prices which is based on the average cost to provide it plus a socially determined reasonable profit rate. The prices can vary depending on scale, technology and/or available renewable resource; these generally take the form of a long term (20 years, usually) Power Purchase Agreement (PPA). Different technologies can be selected/allowed in different regions and the percentage of expensive technologies (such as PV) also can be limited in the renewable "mix" that is given PPA's. The third FIT characteristic is that prices paid by electricity consumers are the weighted average of the renewables and the non-renewables in the grid mix. The non-renewable energy prices can be arrived at by a weighted average of cost plus allowable profit or via a casino-like spot market (also called marginal based pricing and/or uniform clearing pricing) - in a FIT system, the non-renewable pricing arrangement is not that relevant due to the priority grid access. However, FIT systems generally drive down the uniform clearing price systems prices (of the non-renewables) via a process known as the Merit Order Effect (MOE), which removes the extraordinary (rentier) profits that can accrue to owners of paid off low cost pollution based generation facilities under some conditions.
A FIT system does not guarantee profitability for renewable energy generation owners - putting an overpriced system in a bad location and/or failing to operate it competently will probably lead to the bankruptcy of that project. The price set for a technology/scale allows developers to select whether or not a given technology at a given location is a reasonable prospect. The long term pricing does remove the value-less added speculation risk associated with varying prices for electricity, which only makes sense when fuel prices vary with time. Most renewable energy systems have no fuel cost, or at least depletable fuel needs (hence the "renewable" term). The long term stable electricity prices allow low cost, long term capital and bank loans to be used to finance FIT projects, and this lowers the yearly capital costs of these projects to a very significant degree as compared to "casino pricing systems", such as those in NY State at the present time. Variable electricity pricing systems are a significant hindrance to even low production cost renewable energy systems (such as wind turbines), and a complete stop for expensive renewable systems such as PV's, especially in low insolation regions like NY State.
The idea behind the CO2 Sin Taxes is to raise the price of consuming fuels whose combustion takes old stashed away carbon based fuels - coal (empirical formula = CH), oil (empirical formula = CH2) and natural gas (formula = CH4) - and spews forth CO2 and water vapor into the air. After 30 years, about half of that CO2 still remains in the air (the other half is mostly absorbed in the surface portion of the oceans). But that remaining CO2 is likely to remain in the air for centuries… Right now there is essentially no cost to doing this spewing - as long as the fuel can be had, there is essentially no extra cost to the CO2 trash disposal. And a relatively small part of the humans over the last 200 years have raised the CO2 content in the air from ~ 283 ppm to nearly 400 ppm. While this may not sound like much, it's totally messed with the thermal balance of the planet, as slightly more heat energy is now absorbed from the sun than is radiated into outer space at 400 ppm CO2, while at less than 300 ppm, a balance occurs. So every second of every day, about 0.75 watt more is retained for each square meter of our planets's surface. And that's a lot of area (Area = Pi*diameter*diameter, and the earth has a diameter of around 6.371 million meters)….
But what is the correct price for this CO2 pollution? And what if only some can afford it? Do we then ration fossil fuels at these higher prices than is presently the case? At what price does natural gas, oil and coal have to be before renewable substitutes (if even available) are cheaper, and thus the preferred route to go? Not easy questions, and usually, this is a range - a certain price rise for fossil fuels will displace some percentage of fossil fuel consumption. For example, in the US, raising the price of oil by $20/bbl drops gasoline consumption by about 1% in the short term, maybe more in the long term. To get rid of gasoline consumption via this demand destruction process, very high prices will be needed. And since most people in our country have seen their standard of living drop in the last decade (only the top 10% have seen net improvement), that will not be very popular at all. Odds are, prices for gasoline will have to at least double before half of the gasoline now used will either not be used and/or substitutes will be found… like cellulose based ethanol, ethanol made by reducing CO2 with hydrogen or "fried biomass derived liquids". But not all gasoline now consumed can be replaced with fuels like ethanol. And without liquid fuels, transport of people and goods at the scale now being done is probably not possible.
One of the better known attempts to determine the "social cost of carbon" was the effort led by Sir Nicholas Stern (Stern Report) in 2007. Adjusting for inflation, the $US 85/tonne of CO2 i1987 price is around $85/ton of CO2 pollutant nowadays. While this may not be perfect, it's a start. For oil, (880 lbs CO2/bbl of combusted oil), such a price would add $37.40/bbl, or $6.68/MBtu. This CO2 price adds $5.20/kcf for natural gas, about $170/ton of Wyoming lignite or $218/ton for Appalachian coal (12,500 Btu/lb). Or, in dollars per million Btu (MBtu), about $5.20/MBtu, 9.66/MBtu or $8.72/MBtu. Since delivered natural gas is selling for $5.30/kcf in bulk (Nov 28, 2012), lignite is $12/ton at the mine ($42/ton delivered to WNY) or Appalachian coal is near $65/ton (WNY), these are significant price increases. If these were instituted immediately, this would cause a huge economic shock to the nation, at minimum doubling the generator price for electricity and doubling the heating bill for anyone using gas for heat. But, this would cause demand destruction with respect to coal and natural gas, which is the object of cranking up fossil fuel prices. Obviously, another $1.33/gallon higher gasoline and diesel prices as well as doubling natural gas heating prices/tripling bulk electricity prices to around 10 c/kw-hr would not be very popular….. And some of the energy price increase would translate into higher costs/prices for a wide variety of foods, goods and services in this country, as corporations try to recoup their increased costs of doing business.
With electricity, there is at least one major viable competitor (wind turbines) and several minor ones (biomass, biogas, tidal, geothermal) to the coal and natural gas used to make about 2/3 of our electricity, so the liquid fuels problem does not apply. Electricity production is responsible for around 40% of US CO2 pollution, while heating (mostly with natural gas) is responsible for around 25%. Oil is mostly transport utilized, and petroleum burning is about 35% of US CO2 pollution (oil is now too expensive to be used to make much electricity and the amount used for heating is shrinking rapidly due to its high price).
The Pricing Experiment
Lets' say that the unsubsidized wind turbine electricity price is 10 c/kw-hr (i.e. no tax avoidance subsidies like the PTC, ITC and MACRS are used to allow wind sourced electricity to be sold at prices near what pollution based electricity is now sold at). And let's use the average (so far) for Western NY's bulk electricity price (essentially all coal based, as natural gas is TOO EXPENSIVE to compete, even at the present below cost of production natural gas price of $4/kcf) of 3 c/kw-hr. And as the demand for coal drops, the price for that will also drop somewhat, requiring still higher demand destruction efforts (higher carbon taxes).
The present price of Appalachian coal ($65/ton) gives an electricity raw material price of around 2.2 c/kw-hr; upping the price of this coal to $283/ton from $65/ton would raise the raw material cost of this electricity to 9.7 c/kw-hr. Let's say that the break-even price for coal based generation at $283/ton coal is 10.5 c/kw-hr. With the $85/ton CO2 pollution price, coal becomes slightly more pricey than wind to supply electricity, and adding more turbine capacity actually lowers prices for consumers. At a price of around $81/ton for CO2 pollution, coal starts to become more expensive than wind to provide electricity to grid based customers.
At what price point for CO2 pollutant will wind turbines be the lower cost option? The CO2 pollution price needs to be at least $81/ton; below that, coal is still the lower cost option, and as less coal is used nationwide, the basic price will likely drop, requiring a higher CO2 pollution price to make wind the lower cost option.
Unless a FIT pricing system is implemented, even at CO2 pollution prices of $25, $50 or $75/ton of CO2 (the present RGGI fees, which pass as the CO2 pollution tax (though technically it is not a tax), are only $1.80/ton of CO2), no new wind turbine capacity is likely to be installed, because wind would still be the higher priced generation technique. This is akin to a step function, or the ante to a poker game. Until the initial initial step has been climbed, renewables are still the higher priced option.
Let's say that either the FIT and Sin Tax process are used over a 10 year period to replace all coal usage in a system with a 2000 MW average electricity load. Under a FIT system, prices would rise 0.467 c/kw-hr each year, but in the process, sufficient wind turbines to deliver 200 MW of average power production (about 600 MW of capacity) would be installed. Electricity prices might also drop somewhat due to the MOE, especially in the initial years of its implementation. In 10 years, all electricity would be supplied by wind, and for the next 10 years (years 11 through 20), prices would be 10 c/kw-hr. After that period, prices would drop once the capital for the wind turbines has been paid down, though after roughly 10 more years, those initial turbines (with a probable lifetime of 25 to 30 years) would need to be replaced.
Under the Carbon (sales) Tax approach, electricity prices would also rise by about 0.467 c/kw-hr per year, but until year 10, wind sourced electricity would still be more expensive than the coal plus the partial Sin Tax arrangement. However, in this 2000 MW system, each year about $81.8 million in additional revenue would be collected. If that revenue is returned to all electricity customers (Cap and Dividend), none can be used for renewable energy investments unless the customers themselves do it. However, since a wind farm (or set of wind farms with the same total output), that delivers 200 MW on average probably cost $1.2 to $1.5 billion to install, it is unlikely that the carbon tax revenues would be able to install such a system/systems. If this money is used as a replacement for other tax revenue (for example, using these regressive electricity sales taxes to replace more progressive income taxes), economic damage would result from the resulting greater economic inequality. This money could also be used to subsidize some renewable energy (but which ones?), but subsidized renewable projects always tend to have greater real costs than do FIT installed projects. If this money is used to to buy more expensive renewable energy than wind (for example, PV that is at least 5 times the unsubsidized wind turbine electricity cost), then not all of the coal can be readily replaced in the 10 year time frame - in the case of an all PV approach, less than one fifth would be replaced.
Of course, some of the sales tax revenue could be used to increase energy efficiency (LED lights for all!), and this could reduce the overall demand for electricity somewhat. But since other forms of fossil fuel usage (natural gas heating with electrical heat pumps, gasoline and diesel with electrical powered transportation) need to get replaced with electricity, efficiency will likely only go so far.
Lastly, there is the question of how much renewable energy (intensely job creating) gets installed, and where these systems are made. FITs were designed as economic demand stimulating systems. With carbon VAT taxes, the manner in which those tax revenues are used is a wide open question, and is likely to create a lot fewer jobs than with FIT systems, since that money could be squandered on immediate consumption, or worse yet from a macroeconomic vantage, not spent at all ("saved"). It is unknown if the higher electricity prices will be used for new job creation making and installing new renewable energy systems, which is where maximum economic stimulus is likely to come from.
So, at best, CO2 pollution taxes might be able to displace almost as much renewable energy as FITs can do, although that is also a matter of which renewable approaches are used to displace present pollution based routes to energy production. But at worst, these can become very regressive sales taxes that end up creating few jobs and that further exacerbate the income inequality that is degrading our economic capabilities. Carbon taxes can be a form of negative behavior modification, a sort of electro-shock for bad behavior, but one that can further degrade the standards of living for the vast majority while benefitting the ultra-rich, who will be essentially unperturbed by higher energy costs.
And since political consensus is required for a stable climate policy, policies that are not massively job creating (unlike FITs, which ARE massively job creating) are unlikely to realize such a consensus. Instead, they will be hated, especially by those with the least income and wealth, and some seriously regressive types will be able to run with that hatred of high energy prices that don't deliver adequate job creation. And they will run most of the human race off cliff, a great imitation of lemming-ness. Is it worth punishing climate sinners (which essentially we all are) with more income and wealth inequality creating flat taxes rather than concentrating on installing as much renewable energy that displaces pollution sourced electricity as fast and as efficiently as is possible because it sort of syncs with Protestant religious traces that still are imprinted on our society?
The neat thing about FITs is that carbon taxes are irrelevant to the way that FITs work. With or without the tax/fee on CO2 pollution, FITs replace pollution sourced energy and they also create demand for renewable energy systems, which creates jobs. And given the massive unemployment now afflicting our country, that's probably more important now than destroying demand for fossil fuels via pricing it higher. After all, if you don't survive the winter (what's left of it), what happens 5 years from now or 50 years is not of much consequence to you, though it may be to others….
Picture from
http://investincanada.gc.ca/eng/publications/enercon.aspx