In the long run, the target is below $150/ tonne by 2030 and further below $100/tonne before 2050, but according to some calculations, it may fall below that limit by a margin. But these are estimates and there are many factors that come into play. Factors on assumptions about reasonable cost reductions for equipment for scaling up, service life of the plant, cost for maintenance, electricity and heat price, and cost for land and water use. On the other hand, it is important to point out that the reports made in this area agree that the cost will fall over time, as well as that the need for negative emissions increases with each passing year.