Energy management

Energy management is Spirii’s portfolio of local capabilities for distributing, scheduling, and controlling charging power. Add chargers without expensive grid upgrades, lower energy costs, and protect a site’s electrical infrastructure.

Overview

At a busy site, chargers left to draw power first-come-first-served can overload the circuit’s fuse and leave vehicles undercharged. Adding more chargers can mean a costly grid-connection upgrade. Energy management solves both at the site, with four capabilities:

Dynamic load management

Distributes available power across the chargers on a circuit, within its fuse limit. The foundation everything else builds on.

Scheduled charging

Holds a session until the hours you chose, or until the cheapest intervals in a window.

Prioritised charging

Gives chosen charge keys the maximum available power ahead of the rest.

Programmatic charger control

Lets your own software set charger and circuit limits dynamically.

All four work locally, on the circuit your chargers are wired to. Grid balancing is the portfolio-level sibling: it earns revenue from frequency regulation rather than cutting a single site’s costs. The two aren’t independent, though. Grid balancing trims charging power within the boundary DLM sets, and it does so through programmatic charger control — second in the precedence order below.

How it works

All four capabilities can be active on the same location and circuit at once. When more than one applies, they resolve in a fixed order of precedence: Fuse protection always comes before optimisation, so DLM wins. Scheduled charging only acts when nothing above it needs the power, which is why a full charging duration inside a window isn’t guaranteed on a busy circuit. Two consequences worth knowing before you enable anything:

Prioritised charging does nothing on its own. It biases an allocation, so it needs DLM or a schedule to be limiting power in the first place.
Programmatic charger control is how the platform reaches outside itself. Grid balancing uses it, and so does any energy management system, battery controller, or solar integration you bring.

Options and configuration

Capability	What it does	Use it when
Dynamic load management	Shares power across the chargers on a circuit, within the fuse limit	Always, since it’s the foundation that keeps the site safe and operable
Scheduled charging	Moves charging into chosen hours, or the cheapest intervals of a window	Vehicles stay plugged in longer than they need to charge
Prioritised charging	Gives prioritised charge keys the maximum available power first	Some vehicles must charge fast regardless of the others
Programmatic charger control	Lets external software set dynamic charger and circuit limits	You run an energy management system, solar, or a battery that should drive charging

When to use it

A depot with limited grid capacity

DLM lets you add chargers within the existing connection instead of paying for an upgrade. Add scheduled charging so the fleet charges overnight at the cheapest hours.

A site with on-site solar and a battery

Programmatic charger control lets your software push charging toward solar production and hold the site within its grid-connection limit.

A mixed fleet with critical vehicles

Prioritised charging keeps the must-run vehicles full while the rest share the remaining power.

Set up

Most of energy management is yours to configure in Connect: you create the circuit and set its fuse capacity, attach the chargers, enable DLM, build schedules on the location’s Power management tab, and mark locations and charge keys for prioritisation. Each capability’s page covers its own steps. Two things involve Spirii. Charger models have to be validated for the feature you want, which Spirii confirms as part of enrolment; and for programmatic charger control, Spirii registers your software as an actor and issues its credentials.

Dependencies and limitations

Validated hardware only. These capabilities run on charger models Spirii has validated for them, which is what keeps the fuse protected. Validation is assessed per model and per firmware version, so a model validated in the past can fall out of compliance after a firmware update. See Charger validation.
Programmatic charger control needs software you provide. Spirii exposes the limits; the logic that decides what they should be is yours.
Prioritised charging needs an active power limit to have any effect, and it works only on the Spirii network, not on roaming.
Price optimisation depends on electricity price data for the market the location sits in.

Start with dynamic load management: it’s the boundary everything else works inside.

Grid balancing

The portfolio-level sibling: earn revenue from frequency regulation within the limit DLM sets.