Review behaviour of electricity storage forecasting algorithm

[mabijkerk]

We have been notified by some of our clients of several potential shortcomings of the forecasting algorithm. These warrant further investigation.

• 1. After some changes with batteries in a 2050 II3050 scenario, the sum of elements in the chart "total costs" was not equal to the total presented in the table (not able to reproduce yet)
• 2. When the installed capacity of batteries in a 2050 II3050 scenario is reduced, the full load hours decrease in some cases
• 3. Local forecasting with large amounts of solar PV in households and demand in households, despite large installed capacity of household batteries, the batteries only charge with a limited capacity
• 4. Forecasting has unexpected consequences for price-setting behaviour in this scenario: on January 1st curtailment is active but prices jump from 0 tot ~5 euros/MWh

[mabijkerk]

The following scenario reproduces issue 1: https://energytransitionmodel.com/saved_scenarios/16595.

The error seems to be caused by a rounding error in the Energy carriers import/export group. For 2 GW li-ion batteries the decimals reappear and the sum total is equal to the total row.

[kaskranenburgQ]

When I open this scenario, the correct numbers seem to appear: