205881
A recent study indicates that under a carbon pricing scheme with charges consistent with the low-end of requirements for safe atmospheric carbon loading , public financing through the CTF Fund could close the cost gap between solar thermal and coal-fired power in a 5 to 10 year program that expands capacity at 500-1000 MW / year .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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