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System and Integration Costs

| 2021:801 | Lennart Söder
In this report, we have studied the possibilities and challenges of estimating total system costs for a future power system and also the definition and estimation of integration costs.
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The overall purpose of discussing these type of costs is the need to achieve a socio-economic and sustainable electricity supply where all consequences of different supply alternatives must be taken into account, not just the cost of a certain power plant costs. However, the question is much more complicated than to only specify a general cost in the form of a certain number of additional cents/kWh.

Both system costs and integration costs, can vary greatly depending on different assumptions about system structure. The report contains several numerical examples where the purpose is to show not only qualitative but also quantitative results for these costs for various assumptions about system structure.