Over the last decade, state tax credits for renewable energy production have helped to create an industry in New Mexico, generating more than 11,000 jobs and $1.6 billion in economic activity, according to a new study. About 60 wind and solar facilities have been built, it says. The study of the tax credits, which were enacted in 2003 and have cost $120 million, was released as the Legislature considers extending the credits. They are now set to expire in 2018. “Taxpayers are getting a huge return on their investments in clean energy — new jobs, new investments, new economic activity — while reaping the additional environmental benefits that come from clean energy,” said Palmer Schoening, a spokesman for Family Businesses for Affordable Energy.