Grants can cover up to 30 per cent of the eligible cost of technology-driven projects and 40 per cent in the case of energy audits. Moreover, an additional 10 per cent bonus grant can be awarded for projects involving CHP or fuel switching, up to a maximum of 50 per cent of the project cost. Industrial companies can also benefit from loans from the Bulgarian Energy Efficiency Fund to finance investments in high-efficiency industrial processes, building rehabilitation, and heat source and distribution system improvements. Through this facility ,€46 million in loans have been signed w'itli six Bulgarian banks.