Within the framework of the CLOSED Project the goal of the Environmental Cost Accounting is:

1. to calculate the costs of the measures implemented by the companies to prevent, reduce or repair environmental damage caused by their operations (environmental costs);
2. to identify those areas - in qualitative terms - that would be modified through the creation of the eco-industrial metabolism project;
3. to identify those phases of the process in which the reduction of environmental impact coincides with the reduction of business costs thus constructing a win-lose diagram.

The assessed costs also include decreased waste production and disposal, water protection, air quality improvement, noise reduction, removal of pollutants, proper environmental management, research on products and processes with lower environmental impact. The environmental cost accounting phase of the CLOSED Project fits into the context of the European environmental cost accounting project. Environmental cost accounting is the representation of the economic and financial effort made by the company to protect the environment .