#[non_exhaustive]pub struct DynamicPerformance {
pub rated_capacity_ah: Option<f64>,
pub capacity_fade_pct: Option<f64>,
pub power_w: Option<f64>,
pub power_fade_pct: Option<f64>,
pub internal_resistance_mohm: Option<f64>,
pub internal_resistance_increase_pct: Option<f64>,
pub round_trip_efficiency_pct: Option<f64>,
pub round_trip_efficiency_fade_pct: Option<f64>,
pub expected_lifetime_cycles: Option<u32>,
pub expected_lifetime_years: Option<f64>,
}Expand description
Measured performance and durability of one physical battery — Annex XIII point 4(a).
§Why this is a block and not ten more fields on BatteryData
Point 4 describes an individual battery; points 1 to 3 describe a
model. The Commission’s own data-point guidance makes the pairing
explicit rather than implicit — its entry for ratedCapacityAh here reads
“same as data point number 11 (capacity), but now dynamic” — so the same
quantity is deliberately carried twice, once as declared and once as
measured. Flattening these onto BatteryData would put the two readings
side by side distinguished only by name, and would let a filer put a
measured value in a declared field. Keeping the block separate makes the
distinction structural, and lets one individual disclosure entry cover
the whole set — the same shape StateOfHealth and ExpectedLifetime
already use.
§Optionality
Every field is Option. The guidance marks this set mandatory for EV and
LMT batteries but “if applicable” for industrial ones, and marks round
trip efficiency and its fade “where applicable” for all three. Which
fields a given battery owes is a category-conditional rule, not a schema
constraint.
Fields (Non-exhaustive)§
This struct is marked as non-exhaustive
Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.rated_capacity_ah: Option<f64>Rated capacity in ampere-hours, measured. The dynamic counterpart of
BatteryData::nominal_capacity_ah.
capacity_fade_pct: Option<f64>Capacity fade, as a percentage of the original rated capacity.
power_w: Option<f64>Power, in watts.
power_fade_pct: Option<f64>Power fade, as a percentage of the original power.
internal_resistance_mohm: Option<f64>Internal resistance, in milliohms.
internal_resistance_increase_pct: Option<f64>Internal resistance increase, as a percentage of the original.
round_trip_efficiency_pct: Option<f64>Energy round trip efficiency, as a percentage. “Where applicable” for every category, unlike the fields above.
round_trip_efficiency_fade_pct: Option<f64>Energy round trip efficiency fade, as a percentage. “Where applicable”.
expected_lifetime_cycles: Option<u32>Expected lifetime under the reference conditions the battery was
designed for, in cycles — “except for non-cycle applications”. The
measured counterpart of BatteryData::expected_lifetime_cycles.
expected_lifetime_years: Option<f64>The same expectation in calendar years, which the annex lists as a separate data point rather than a unit conversion: a battery can have a calendar-life expectation and no meaningful cycle count.