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In 1992 many countries joined an international treaty, the 1992 United Nations Framework Convention on Climate Change (UNFCC) , as a framework for international cooperation to combat climate change by limiting average global temperature increases and the resulting climate change, and coping with impacts that were, by then, inevitable. After ratification of the UNFCCC treaty, Parties to the UNFCCC have met at conferences to discuss how to achieve the treaty's aims.

The Global Solar Energy Standardisation Initiative is currently developing standardized solar contracts and guidelines that simplify and streamline existing best practice.

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Examples on the country-level are the standard bidding documents and contracts developed for Argentina (RenovAr )

Argentina has been holding public auctions to buy RE under a program called “RenovAR”. The program applies for wind energy, solar energy, biomass and small hydroelectric plants and biogas. It includes a “green trust fund” to provide security and confidence to investors. Cammesa (Compañía Administradora del Mercado Mayorista Eléctrico) has published the relevant laws, and bidding documents (including draft PPAs) on its website.