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14th December 2012

Solar power prices to continue falling through 2025, experts say

A new survey argues that solar power will become much cheaper through 2025, while expanding greatly in use — but for these trends to continue for the long term, will require a committment to funding research.

 

solar trend 2025

 

Prices for solar modules — the part of solar panels that produce electricity — will continue to fall, in line with the long-term trend since 1980, according to a survey of experts by Near Zero, a nonprofit energy research organisation. However, for prices to keep falling for the long term will require continued committment to research, such as on materials used for making solar modules.

To get a sense of what future prices for solar power are likely to be, as well as other challenges and bottlenecks that the industry faces, Near Zero conducted a formal, quantitative survey (an "expert elicitation") that drew from industry, universities and national labs. By aggregating forecasts made independently by a variety of experts, these results reflect the collective wisdom of the group about how the solar power industry is most likely to develop, and also help to characterise the range of uncertainty about the future.

The survey asked experts for their expectations of future prices for modules, as well as the expenditures for other parts, known as "balance of system" expenses. They were also asked how much solar power they expected would be installed in the coming years.

The experts expected the price of solar power systems will fall sufficiently that it will be far more competitive than it is today. They forecast a large expansion of the amount of installed solar power, increasing more than 10 times over the decade from 2010 to 2020, an expansion that will continue at a similar rate until at least 2025.

However, this success story is dependent on solar power prices continuing to fall, which will require continued and possibly increased levels of spending on research and development, the experts said. If solar power prices continue to fall as expected, then the large expansion of installed solar power could be achieved while requiring spending less each year than the world currently is spending on solar power installations. But if prices were to hold steady rather than falling, then the same expansion of solar power, over the period 2012 to 2025, would cost at least 50% more — adding up to several hundred billion dollars.

 

solar price trend

 

 
 
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