The Solar Trade Association (STA) stated the renewable method could also provide as much electricity as the power plant for half the subsidiary cost.
The analysis shows a combination of solar, storage and other flexibility mechanisms can cost consumers approximately 50% less than Hinkley Point C over the 35-year lifetime of the Hinkley subsidy.
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The £18bn project was given the green light for construction yesterday after a funding deal was agreed between EDF and its Chinese partner China General Nuclear Corporation.
Mike Landy, Head of Policy at the STA, said: "We hope this analysis makes people stop and think about how inexpensive solar has become and how competitive it is against other forms of low-carbon generation."
"We are not saying that solar is the solution to all our energy problems, nor that it could completely replace other technologies.
"However the Government needs to explain why it is drastically cutting support for solar energy whilst offering double the subsidy to Hinkley Point C.
"It also needs to explain why it is championing overseas state-backed utilities over British solar companies which given stable support would have considerable growth prospects."
(LM/CD)
