Enum Asset 

pub enum Asset {
    Pv(PvArray),
    Battery(Battery),
    Evse(Evse),
    HeatPump(HeatPump),
    Dhw(DhwTank),
    Load(FlexibleLoad),
    Meter(Meter),
    Relay(Relay),
}

Anything that consumes, produces, stores or measures.

Variants

Pv(PvArray)

A photovoltaic array.

Battery(Battery)

A stationary battery.

Evse(Evse)

A charge point.

HeatPump(HeatPump)

A heat pump.

Dhw(DhwTank)

A hot water tank.

Load(FlexibleLoad)

Any other load.

Meter(Meter)

A meter.

Relay(Relay)

A switched output.

Implementations

impl Asset

pub fn meta(&self) -> &AssetMeta

The facts common to every asset.

pub fn id(&self) -> &AssetId

The identifier.

pub fn capabilities(&self) -> Capabilities

What the driver can do with it.

pub fn fallgruppe(&self) -> Option<Fallgruppe>

Which § 14a Fallgruppe the asset falls into, ignoring thresholds, exemptions and commissioning dates — those are hems-grid’s decision.

A hot water tank’s heater is not a Fallgruppe of its own: [A1 2.4.1.b] counts auxiliary and emergency heaters with the heat pump, and a tank without a heat pump behind it is an ordinary load.

pub fn symmetry_relevant(&self) -> bool

Whether VDE-AR-N 4100’s symmetry requirement applies to this device.

Not to everything behind the connection, which is the reading that looks obvious and is wrong. The VDE FNN Hinweis Symmetrischer Anschluss und Betrieb in Kundenanlagen is explicit about the scope of Abschnitt 5.5.2: “Die Anforderungen zum symmetrischen Betrieb gelten nur für Geräte die elektrische Energie einspeisen oder speichern können, also Erzeugungsanlagen, Speicher, Ladeeinrichtungen für Elektrofahrzeuge.”

So an inverter, a battery and a charge point are in scope; a heat pump, a hot-water tank and the household’s own single-phase load are not. Counting them made the site look more unbalanced than the rule says it is, and spent the difference on the one device the manager could still move.

pub fn steuve_power(&self) -> Power

The power the § 14a threshold is applied to.

For a heat pump this is compressor plus heating rod [A1 2.4.1.b].

pub fn ratings(&self) -> Envelope

What the hardware itself can do, before any rule applies.

The nameplate connection_power is what the network operator sees, and it is symmetric — which is wrong for almost every asset. A photovoltaic array cannot consume, a charge point without bidirectional hardware cannot export, and a battery’s charging and discharging ratings are routinely different. Handing the guard a symmetric interval invites it to command a value the device will silently ignore, and an ignored command is indistinguishable from a driver fault in the log.

Trait Implementations

impl Clone for Asset

fn clone(&self) -> Asset

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Asset

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Asset

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Asset

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Asset

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 Asset