Struct Reduktionsfaktor 

pub struct Reduktionsfaktor(/* private fields */);

A §14a Modul 2 reduction factor — the fraction of the published Arbeitspreis actually paid.

Modul 2 is the prozentuale reduction; Modul 1 is the flat annual pauschale and carries no factor at all (see ArbeitspreisModell::Modul1Pauschal).

A newtype because the range matters: "0.40" is a 60 % reduction, and a value outside (0, 1] is not a reduction at all. The range is checked in the constructor rather than in a validator, so a caller that reaches the engine directly cannot multiply the tariff instead of reducing it. It travels as a JSON string like every other Decimal — see the architecture page’s Quantities and money on the wire.

Implementations

impl Reduktionsfaktor

pub const REGELFALL: Self

The statutory factor: 40 % of the Arbeitspreis, i.e. a 60 % reduction.

BNetzA BK8-22/010-A Tenor 2. b): „Der reduzierte Arbeitspreis entspricht 40% des Arbeitspreises für die Entnahme ohne Leistungsmessung des Netzbetreibers in der Niederspannung.“ Tenor 2. c) makes Modul 2 verpflichtend ab 01.01.2024, so this is the rate, not a default a Netzbetreiber may publish around — the reference price is the operator’s, the percentage is not.

Tenor 2. d) adds that no Grundpreis is levied on a Marktlokation billed under Modul 2.

pub fn new(factor: Decimal) -> Result<Self, BillingError>

Build a factor.

Errors

Returns crate::error::BillingError::InvalidInput outside (0, 1].

pub const fn get(self) -> Decimal

The factor as a fraction.

Trait Implementations

impl Clone for Reduktionsfaktor

fn clone(&self) -> Reduktionsfaktor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Reduktionsfaktor

impl Debug for Reduktionsfaktor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Reduktionsfaktor

Deserialising goes through Reduktionsfaktor::new, so a factor that arrives over the wire is range-checked exactly like one built in process.

Deriving it would have reintroduced the unconstrained Decimal this newtype exists to prevent: a request body carrying 5 would then multiply the Arbeitspreis by five with no error anywhere.

fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Eq for Reduktionsfaktor

impl PartialEq for Reduktionsfaktor

fn eq(&self, other: &Reduktionsfaktor) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Reduktionsfaktor

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Reduktionsfaktor