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Error in figure 1 and caption?

Something doesn't add up in figure 1 and its caption:

"Growth rate of photovoltaic installations, as a percentage of total 2004 energy use. By 2007 less than 0.011% of energy came from photovoltaics - at a 40% annual increase this would reach almost 30% by 2030, or by 2015 at a 200% annual increase."

Starting from a total PV energy production of 15 TW*0.011%=1.76 GW, a 40% annual increase would give a total PV energy production after 20 years of 1.76 GW*1.4^20=1.47 TW. This is 1.47/15=9.8% of the total consumption (assuming consumption doesn't increase), not 30% as claimed by the caption/figure. Or am I missing something/doing the calculation wrong??

O. Prytz (talk) 05:39, 7 August 2009 (UTC)[reply]

Ok, I'm removing the figure as I consider it erroneous. O. Prytz (talk) 16:15, 11 August 2009 (UTC)[reply]


Contradiction

These two statements appear mutually contradictory.

"The world's largest solar power plant is located in the Mojave Desert. Solel[11], an Israeli company, operates the plant, which consists of 1000 acres (4 km²) of solar reflectors."

"The 10 megawatt Bavaria Solarpark in Germany is the world's largest solar electric system, covering 25 hectares (62 acres) with 57,600 photovoltaic panels. [4]"


Perhaps the author can resolve this.

Ordinary Person 09:21, 22 August 2006 (UTC)[reply]

The second is a large photovoltaic plant. The first is a much much larger solar trough plant. Article sorted out. Rmhermen 17:32, 7 September 2006 (UTC)[reply]

Serpa

2007.03.29 - Serpa is now fully functional

PV or Solar Power?

This article is not clear whether it talks about PV only, or Solar power as a whole. Jdpipe 00:34, 8 April 2007 (UTC)[reply]

"But as all industrialised nations share a need for electricity, it is clear that solar power will increasingly be used to supply a cheap, reliable electricity supply."

Solar pv use is certainly on the rise, but solar pv can hardly be called cheap. It is positively high priced, can only compete with grid electricity when doing so on a skewed playing field, ie with one or more of the following situations:

  • grid connection not present
  • govt or someone else pays for part of your system, and you only consider your part of the cost
  • someone pays you to generate and use electricity - bizarre as this sounds, it is now standard practice in Britain.

The non-expert reader seeing the sentence quoted would think solar pv cheap, but its anything but. Tabby 12:59, 13 April 2007 (UTC)[reply]

I took out "cheap" and some other stuff, but put "economic". The conditions that make it economic can be discussed if you like, and if you have a good source, but obviously the solar power is economic for some reason, and not necessarily limited to the reasons you suggest. Even in the US where energy is subsidized by the government supporting the energy companies, and where many of the costs of fossil fuel are externalized, there is a new capital business investing in solar capacity because the economics makes sense.

Am I missing something? Isn't the title of the article Deployment of Solar Power to energy grids? To me this means all types of solar power, not just pv. 199.125.109.104 06:22, 14 June 2007 (UTC)[reply]

Feel free to add any other solar technology you know about that puts energy into the grid. I know there's a big solar thermal plant in southern california; are there more? Dicklyon 07:27, 14 June 2007 (UTC)[reply]

Summary table

I moved the summary table over from PV. It would be good to replace the off grid data by CSP data.

Also a global list of solar power stations should pulled from PV and the CSP and hybrid added in.--Oldboltonian 20:11, 27 September 2007 (UTC)[reply]

I would like to know the rationale for having a Total/capita column on the PV Capacity table. I also suggest putting a kWh output total on the table. —Preceding unsigned comment added by 69.229.196.79 (talk) 03:47, 7 October 2007 (UTC)[reply]

Suggest move

I suggest we rename this article to Solar power by country since it's a very wordy and indirect title now. There is a lot of overlap in solar power articles and this title could collect information now scattered in other places. --Wtshymanski (talk) 17:47, 22 March 2011 (UTC)[reply]

Follow the money

There's a reason that the world's (currently) largest solar PV plant is in gloomy southern Ontario and not in some sensible sunny place like Arizona or Spain - that is, a 42 cent a kilowatthour feed-in tariff. We've got people in Ontario cashing in their retirement savings to buy PV plants since the ROI is so good, and screaming that they can't get grid interconnections now. PV power is more about politics than physics. --Wtshymanski (talk) 18:25, 24 August 2011 (UTC)[reply]

It is too simplistic to be saying that investors in Ontario are greedy. Maybe they want to support PV for environmental or other reasons. Maybe they see PV as an ethical investment that will provide benefits for their children.
Moreover, PV is just one example of solar power. Do you also think that solar thermal power plants are being built in “gloomy” locations? Check out List of solar thermal power stations; most large solar thermal power plants have been built in Spain or sunny parts of the USA:
Operational solar thermal power stations
Capacity
(MW)		 Name Country Location Notes
354 Solar Energy Generating Systems  USA Mojave Desert California Collection of 9 units
150 Solnova Solar Power Station  Spain Seville Completed 2010
[1][2][3][4][5]
100 Andasol solar power station  Spain Granada
Completed 2009
[6][7]
64 Nevada Solar One  USA Boulder City, Nevada
50 Ibersol Ciudad Real  Spain Puertollano, Ciudad Real Completed May 2009 [8]
50 Alvarado I  Spain Badajoz Completed July 2009 [9][10][11]
50 Extresol 1  Spain Torre de Miguel Sesmero (Badajoz) Completed February 2010 [12][13][14]
50 La Florida  Spain Alvarado (Badajoz) completed July 2010 [12][15]

-- Johnfos (talk) 20:54, 24 August 2011 (UTC)[reply]

Where were these heroes of environmentalism before the 42 cents a kwh? --Wtshymanski (talk) 21:01, 24 August 2011 (UTC)[reply]
Ontario investors are not “heroes of environmentalism”. They are simply rational investors who take financial and non-financial considerations into account when making decisions.
There are many factors which affect the take-up of new technology and some of them are discussed in diffusion of innovations theory. It is a complex process. The private sector, public sector, investors, and consumers themselves all have a role to play. Johnfos (talk) 21:34, 24 August 2011 (UTC)[reply]

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Mexico

I see that there is no page for Mexico, and there is a pretty limited amount of details. The potential in Mexico is supposed to be significant.[1] This also talks about potential there. I think it would be nice to expand here or even create a new page for it, so I plan on taking a look around and seeing what I can do. Spangled53 (talk) 01:22, 12 April 2012 (UTC)[reply]

  1. ^ RSS Feed for Craig Rubens Email Craig Rubens Craig Rubens (2008-08-08). "Abengoa Rakes in $426M for 4 Solar Power Plants". Earth2tech.com. Retrieved 2011-04-19. {{cite web}}: |author= has generic name (help)
  2. ^ "Abengoa Begins Operation of 50MW Concentrating Solar Power Plant". SustainableBusiness.com News. May 6, 2010. Retrieved 2010-05-07.
  3. ^ "Abengoa Solar begins commercial operation of Solnova 1". Abengoasolar.com. 2010-05-05. Retrieved 2011-04-19.
  4. ^ "Abengoa Solar begins commercial operation of Solnova 3". Abengoasolar.com. 2010-05-24. Retrieved 2011-04-19.
  5. ^ "Abengoa Solar Reaches Total of 193 Megawatts Operating". Abengoasolar.com. 2010-08-02. Retrieved 2011-04-19.
  6. ^ "Acciona y ACS inscriben sus termosolares en el registro de Industria". Cincodias.com. 2009-10-23. Retrieved 2011-04-19.
  7. ^ "ACS aumenta un 22,6% las ganancias de su negocio de 'energía verde' en la primera mitad de año". Labolsa.com. 2010-10-08. Retrieved 2011-04-19.
  8. ^ "José María Barreda and Ignacio Galán open IBERDROLA RENOVABLES' first solar termal power plant". Iberdrolarenovables.es. 2011-04-14. Retrieved 2011-04-19.
  9. ^ Acciona Status Solarpaces 2008 p.25
  10. ^ ACCIONA Energía develops 900-million-euro renewables projects in the region of Extremadura[dead link]
  11. ^ ACCIONA opens its first CSP plant in Spain, in Extremadura[dead link]
  12. ^ a b "Lokalizacion de Centrales Termosolares de Espana". Retrieved 2011-04-19.
  13. ^ Solar Thermal Power Generation - A Spanish Success Story[dead link]
  14. ^ "ACS LAUNCHES THE OPERATION PHASE OF ITS THIRD DISPATCHABLE 50 MW THERMAL POWER PLANT IN SPAIN, EXTRESOL-1" (PDF). Retrieved 2011-04-19.
  15. ^ Matters, Energy. "Spain - A Solar Thermal Powerhouse". Energymatters.com.au. Retrieved 2011-04-19.
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