Royal Dutch Shell has warned that the increase in renewables via subsidy schemes is making cash strapped countries burn more cheap coal, less CO2 low-gas, and focus on the 'meaningless' CO2 price.
RECS International shows this as another example why competition and the market must be better integrated with renewables integration. Allowing the consumer to choose would help to better eliminate the high-CO2 production technologies like coal in place of gas and renewables. This would happen in place of expensive renewables inefficiently placed, like what could happen with the differences between national subsidy schemes. The full article from the telegraph can be seen here.
Another article with a very similar message can be seen here.