I think it depends on the project. Obviously if you have some private sector investors, they are going to make a calculation as to whether they are going to put up money for such a venture, so they are going to be making calculations.
In many instances they found that private sector investors were not very keen to get involved in this area. The government in the U.K. had to create its own financial institutions to invest in these areas because they were seen from a private sector vantage point as simply being too risky.