diff --git a/merged_schema/HPXMLMerged.xsd b/merged_schema/HPXMLMerged.xsd
index 0b1159de..40496bfe 100644
--- a/merged_schema/HPXMLMerged.xsd
+++ b/merged_schema/HPXMLMerged.xsd
@@ -2216,6 +2216,66 @@
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+ Number of similar electric vehicles.
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+ Has the ability to feed electricity back on to the grid.
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+ The total energy available when the battery is discharged starting from 100% state of charge until it reaches the cut-off voltage.
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+ The stored energy that can actually be used. In most cases usable capacity is less than the nominal capacity.
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+ [W] The amount of power the battery typically generates under non-peak conditions.
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+ [V] The nominal voltage is the battery voltage when the state of charge is 0.5 (midway between being fully charged, and fully discharged)
+ with a 0.2C discharge current.
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+ Not all the power that is used to charge the battery is available during discharge. Round trip efficiency is the ratio of the energy put
+ in to the energy retrieved from storage.
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