Uniform framework for the estimation of future values of the techno-economic parameters

The reduction of the future investments costs (e.g. 2050 vs 2020) don't seem to follow common logic. Some mature technologies with a high marginal cost (when the CO2-cost is included) have major cost reductions and other technologies with a low marginal cost and exponential growth have no cost reductions.

A similar remark for the projected lifetimes (which can only be retroactively determined and cost reductions may lead to shorter lifetimes instead of longer lifetimes).

A similar remark for the projected efficiencies. Efficiencies tend to stabilize once a technology has been matured. Higher projected efficiencies are often related to the difference between theoretical and practical efficiencies.

The differences may be the result of the different sources that have been used. The non-uniform techno-economic parameters may cause the results will be steered to certain technologies. A uniform framework for the estimation of future values of the techno-economic parameters is needed.

Start by reviewing the current technology assumptions and the sources used for future investment costs, lifetimes, and efficiencies. Compare the projected values across technologies and years, using the examples in the issue to identify inconsistencies. Done means a documented, consistent estimation framework is agreed for these techno-economic parameters.