EDIT: I am referring to short duration (1-2 years) small grants (10k-30k $/euros) usually given to PhD or post-docs. The amount needs to cover material, conferences, publications, etc. Publishers now charge up to 10k for open access, so towards the end of the funding period when most work is being published the grantee might be short of 10k for a publication.
It is becoming increasingly common for research funded with public money to be published as open access with gold (expensive but immediately open access) or green standard ( free self archiving after 6 months). This is part of the grant agreement which is a binding legal contract.
What happens if a researcher publishes not in open access because cannot afford to pay the open access fee? Some publishers are increasing the open access fees and I have discussed with colleagues, particularly junior scientists and postdocs with limited funding, about this dilemma. Careers depend also on publications appearing in certain journals, so choosing a target journal for financial reasons seem to be a great disadvantage for younger scientists.
- Will there be any legal or other potential consequences such as being banned from applying for grants from the same institution?
- Will there be any non-written consequences such as being flagged as a noncomplying grantee?**
PS: I'm not looking for advice on how to find money for paying the open access fees, there are already questions covering that topic.