Your grid connection has a limit. Exceed it, and you face both penalties and equipment damage.

The question is: how do you manage a solar park, a battery, and a wind turbine — all at the same time — without constantly breaching that limit?

That is what the Teleport‘s local control strategies do.

They run on-site, independently from the cloud, and make real-time decisions based on what is actually happening at your connection point right now.

This article walks through each strategy, when it applies, and how it works in practice.

Start here: what "local control" actually means

Most energy management happens in the cloud. A trading algorithm sends a signal. The asset responds. Done.

But what happens when the internet goes down? Or when a 200 kW load spike happens faster than a cloud round-trip can catch? That is where local control matters.

The Teleport reads your assets every few seconds — sometimes every 100 milliseconds — and can intervene without waiting for a cloud instruction. It’s a sort of co-pilot that keeps the plane level without waiting for instructions from the tower.

The Teleport acts as a local Energy Management System (EMS).A local EMS is a localized version of energy management, typically installed at the same location as the energy assets it manages.

Unlike a cloud-based EMS, which relies on remote servers and internet connectivity to function, a local EMS is physically present at the site of the energy assets.

This setup allows for real-time data processing and direct control over the energy systems.

The primary purpose of a local EMS is to optimize the balance between energy production and consumption directly at the source (“behind the meter”), and ensure functionality in case internet connectivity is lost.

To learn more: What’s an on-site EMS? It does not trade, forecast, or optimize based on prices. It protects the site and executes what the cloud tells it ; always within safe limits.

The one rule everything else follows: stay within your grid limit

Every control strategy the Teleport runs has the same underlying goal: keep the power flowing through your grid connection within its feed-in of take-off limit.

These limits can be contractualA contractual limit is the maximum power level agreed between you and your grid operator (DSO) in your connection contract. Exceeding it can trigger financial penalties or even a forced renegotiation of your connection terms. Contractual limits are often measured as a 15-minute average, meaning brief spikes above the limit may be tolerated as long as the average stays below it. (what you agreed with your DSO) or physicalA physical limit is the point at which your infrastructure — cables, fuses, transformers — starts to fail. Unlike contractual limits, there is no averaging. Exceed a physical limit even briefly and you risk equipment damage, tripped breakers, or fire. This is why physical limits require tighter safety margins than contractual ones. (the point at which your cable or transformer starts to fail). They are not always the same number.

Setting a controller exactly at the limit is not enough. The controller measures what is happening, then reacts — and that reaction takes a fraction of a second, no matter how advanced your system is. In that gap, a real limit could technically be breached. So the Teleport’s target is always set slightly below the actual limit.For physical limits, we recommend setting the controller’s target 10–20% below the actual breaking point.

For contractual limits, which are often measured as a 15-minute average, a 5% buffer is usually enough.

The right margin depends on how quickly your assets can ramp up or down, and how much your local load fluctuates. In situations with no on-site load, a reservation-based approach eliminates the reaction delay entirely..

Managing solar (PV) and wind power

The simplest case: static limits

If you have a solar park that could produce more than your grid connection allows, the most straightforward approach is to cap it permanently. You tell the Teleport: “never let this inverter produce more than X kW.” It will not.

This is called a static power limit.A static limit is a hard cap on an asset’s output. It does not respond to local conditions ; it simply blocks production above the configured threshold regardless of how much load is on-site. This makes it very predictable but potentially wasteful: if you have local load using the produced power, a static cap will prevent you from exporting more even if the local grid could handle it. It is simple, reliable, and works well when your load is predictable or negligible.

You can set both an upper and a lower limit. The lower limit is useful if you always have some base load on-site that absorbs production: there is no point curtailing to zero if 100 kW will always be consumed locally.

When local load changes: dynamic limits

Static power limits work, but what if you want more flexibility?

Dynamic controlDynamic limitation adjusts asset output on the fly based on live measurements at your grid connection. When local consumption rises, the Teleport allows more production. When it falls, it dials the assets back. This way, you always extract the maximum generation your grid connection can handle — no more, no less. The Teleport supports dynamic control based on active power (W), current (A), temperature, or irradiance. fixes this. The Teleport watches your grid connection in real time and adjusts the inverter’s output based on what is actually flowing. When local consumption rises, the Teleport gives the panels more room. When it falls, it pulls them back.

There are three ways this measurement can work:

• Based on active power (W): Ideal for meeting contractual feed-in limits, which are often specified in Watts (W). The Teleport monitors real power flow and keeps it below the agreed threshold.
• Based on current (A): Physical infrastructure — cables, transformers — heats up based on current, not watts.Active power (watts) and current (amps) are related but not identical. Power = current × voltage. If your voltage fluctuates, the same watt-level can correspond to different currents. For physical infrastructure that heats up based on current, measuring amps directly is more accurate than measuring watts. The Teleport tracks the most loaded phase and curtails based on that, accounting for phase imbalances. If your risk is physical damage rather than a contract breach, current-based control is more accurate.
• Based on temperature: If you have a sensor on a transformer, the Teleport can reduce the output when it starts overheating. A direct physical safeguard.

These dynamic limiters are closed-loop controllersA closed-loop controller measures an output, compares it to a target, and applies a correction.

The advantage: they adapt continuously to real conditions. The limitation: they react after a measurement, not before. That reaction delay is why a safety margin is always set between the controller’s target and the actual limit. A brief spike can still technically occur before the correction kicks in. — they adapt to conditions continuously, but they react after a measurement, not before.

• Power reservation (for physical limits with no local load): When there is zero local consumption and your primary concern is never tripping a limit, the Teleport pre-allocates capacity per asset.Instead of measuring and reacting, the Teleport reserves a fixed maximum output for each asset. The combined total of all reservations is kept below the physical limit. There is no feedback loop, no reaction delay. The limit simply cannot be exceeded by design.
  
  This approach only works when there is no local load, because unpredictable consumption would make fixed reservations. meaningless. No feedback loop, no reaction delay. The combined output of all assets simply cannot exceed the target, by design.

When you have both solar and wind on the same connection

Wind turbines have inertia. Forcing a turbine to curtail abruptly works against this, and repeated deep curtailments accelerate mechanical wear. A solar inverter does not, so this difference determines how the Teleport manages a site where both generation types share one grid connection.

When the combined output approaches the connection limit, the Teleport curtails solar first.

The Teleport uses a capacity reservation system (mentioned above) rather than a reactive one. The connection limit cannot be breached because the allocation is enforced before the power flows, not after.

Managing batteries

Batteries add another layer of flexibility, but also complexity. They can charge or discharge, responding to signals from an energy trading platform or an aggregation service. The Teleport makes sure these actions don’t cause grid problems.

Dynamic battery setpoint adjustment

The Teleport acts as a gatekeeper between the trading signal and the battery. When a command arrives — “discharge at 200 kW” — the Teleport checks whether doing that would push the grid connection over its limit. If it would, it reduces the command just enough to stay safe.

This happens transparently. The trading platform sends its signal. The battery executes the closest safe version of it.

As with solar control, this check can be based on watts (contractual limit) or amps (physical limit).

Cascade control (managing multiple connections)

Some sites have multiple separate grid connections that all feed into a single main connection. A large industrial park might have three buildings, each with its own 1 MW connection, all sharing a 2 MW main connection.

Cascade controlCascade control manages two levels of grid limits simultaneously. Each lower-level connection has its own Teleport managing local limits. An upper-level controller coordinates across all of them to ensure the combined total never exceeds the main connection’s limit. Available capacity is allocated dynamically as conditions change at each connection point. manages both levels simultaneously — each connection locally, and the main connection in aggregate.

Managing solar (PV) and batteries together

When you have both a battery and a solar installation, the Teleport can orchestrate them jointly. Two strategies handle this.

Multi-asset power limiter

This strategy manages PV and battery output against a single grid limit. The Teleport monitors one meter and calculates what each asset can safely do.

The logic prioritizes solar generation.This ensures you maximize the use of your own generated energy rather than storing everything in the battery only to discharge it moments later. If there is spare capacity, the panels run first. The battery fills in or holds back depending on what is left.

Multiple batteries are managed as one: dispatch is split proportionally based on state of charge

Discharging? The fullest battery goes first. Charging? The emptiest one goes first.

When states of charge are roughly equal, each battery receives the same fraction. This naturally converges SoC across cabinets over time without requiring manual balancing., with the fullest discharging first and the emptiest charging first.

Battery peak shaver

The peak shaver goes further. Instead of just limiting output, it actively uses the battery to absorb or release energy when a limit is about to be breached.

A practical example: it is 11:00, your solar production spikes, and you are about to exceed your feed-in limit. The Teleport commands the battery to start charging — absorbing the excess before it reaches the grid. No curtailment needed.

Reverse case: it is 18:00, production has stopped, and your factory load spikes above your import limit. The battery discharges to cover the difference. The grid connection stays within bounds.

You can configure both directions independently. You can also set a 15-minute averaging modeMany grid connection contracts define limits as a 15-minute average rather than an instantaneous value. This means brief spikes above the limit are tolerated as long as the average over the 15-minute window stays below it.

The Teleport’s peak shaver can operate in this mode, which allows it to use the battery more efficiently, only intervening when an actual average violation is at risk, rather than reacting to every momentary fluctuation., which matches how many contractual limits are actually measured.

State of charge management.

You can schedule the battery to reach a target charge by a specific time — useful if you want it full before peak morning production, or before an evening trading window. You can also define minimum and maximum SoC limitsState of Charge (SoC) is the battery’s current energy level, expressed as a percentage of its total capacity.

Setting a minimum SoC (e.g., never go below 20%) ensures a reserve is always available for emergency peak shaving. Setting a maximum (e.g., never charge above 90%) protects battery health.

You can also split the SoC range between peak shaving and trading — reserving the top 30% for market dispatch, for example, and using the middle range for local grid protection., and reserve portions of the SoC range specifically for trading versus peak shaving.

Self-consumption mode.

A specific variant of the peak shaver that focuses on maximizing your own use of generated energy. The battery stores surplus solar powerSelf-consumption optimization is most valuable when your grid export tariff is low or negative, and your import tariff is high.

By storing excess solar production during the day and releasing it in the evening when you would otherwise import from the grid, you reduce both your energy bill and your grid exchange.

Grid exchange approaches zero wherever battery capacity allows. Any remaining surplus or shortfall is handled normally by the grid. during the day and releases it when you would otherwise import from the grid.

EV charging

EV chargers create unpredictable load. Several vehicles connecting at once can push a site’s consumption well above its contractual limit.

The EV power limiter works similarly to the battery limiter: it monitors your grid connection and reduces the maximum charging power across all connected vehicles if a limit would be breached. When conditions improve, it restores capacity.

The Teleport also includes an EV power distribution controller.When multiple vehicles compete for limited charging capacity, the Teleport allocates power fairly. It starts by giving each car an equal share.

– If one car stops drawing (full or paused), its allocation is redistributed.
– If a car has been waiting without receiving power for more than 120 seconds (configurable), it jumps to the front of the queue.
– The car that has been charging longest is held back to balance things out.
– Cars that are full are excluded temporarily and re-entered after a cooldown period (default: 900 seconds). This prevents any single vehicle from holding capacity indefinitely. When multiple vehicles are competing for limited charging capacity, it allocates power fairly — prioritizing cars that have been waiting longest, redistributing unused capacity, and managing the queue automatically.

Note: EV control currently operates independently. It cannot be combined with battery or PV control in the same strategy. For sites that need EV charging alongside solar and batteries, the battery peak shaver covers that scenario.

Participating in grid services

The strategies above protect your site. The ones below let you contribute to the grid, and get paid for it.

Enexis Zonbalans (Netherlands)

For participants of the ZonBalans programZonBalans is a program by Enexis that allows businesses to export excess solar energy to the grid during non-peak hours, even when the grid is congested, by automatically adjusting energy export based on solar intensity. This enables participants to return up to 70% of their unused solar energy annually, despite grid capacity limitations.

For more details, check: ZonBalans: how to participate with the Teleport? by the Dutch grid operator Enexis.

The Teleport uses real-time irradiance dataIrradiance is the amount of solar energy hitting a surface at a given moment, measured in watts per square metre (W/m²). An irradiance sensor (pyranometer) on-site gives the Teleport a direct measurement of current solar intensity.

This is necessary for strategies like Zonbalans and aFRR, where the control logic depends on knowing how much the panels could produce, not just how much they are producing. from a sensor on-site, and a predefined control curve to adjust how much your panels export, following the Zonbalans logic automatically.

aFRR (Automatic Frequency Restoration Reserve)

aFRRAutomatic Frequency Restoration Reserve (aFRR) is a mechanism used to maintain grid frequency stability by automatically adjusting power generation or consumption in response to deviations from the nominal frequency of 50 Hz.

Energy producers can support aFRR by providing flexible generation or consumption, but they must be connected to a Balance Service Provider (BSP) to participate in the market and submit bids. is a balancing service where assets adjust their output quickly to help stabilize the grid frequency.

Your asset provides aFRR by adjusting its output relative to its theoretical uncurtailed potential. For a solar park, that means: “right now, you could produce 800 kW. Produce only 650 kW and hold the remaining 150 kW as reserve.”

The Teleport calculates the theoretical potential using irradiance data, then limits output to the instructed level. Your aggregator or Balance Service Provider (BSP) sends the setpoints via the API.

Note: it requires appropriate sensors.

RfG compliance: Realtime Interface / Telecontrole (NL, BE, and beyond)

Several European DSOs now require a certified, direct control link for any connection above a certain capacity threshold.

In the Netherlands, this is called the Realtime Interface.The Realtime Interface (RTI), developed by Netbeheer Nederland, is a standardized system enabling real-time communication between grid operators and energy generators. It helps manage grid congestion by adjusting energy input based on available capacity, ensuring efficient and safe electricity distribution.

For new or modified connections above 1 MW in the Netherlands, it is mandatory.

Learn more by checking our Realtime Interface overview or by downloading our whitepaper. In Belgium (Fluvius), it is called Telecontrole.Telecontrole is the mandatory controllability requirement from Belgian DSO Fluvius, applicable to new or modified connections of 1 MVA or more in Flanders (threshold may be lower in some cases).

Learn more by checking our Telecontrole overview. Other countries have equivalent systems under the European RfG framework.The Requirements for Generators (RfG) is a European regulation (EU 2016/631) that sets minimum technical requirements for power-generating facilities connected to the European grid. It includes mandatory remote monitoring and control interfaces for generators above certain thresholds. National implementations vary.

The DSO can send a site-wide signal — “limit export to 500 kW” — and the Teleport interprets and distributes that instruction across your inverters, batteries, and turbines within seconds.

Capacity Limiting Contracts (CBC) and GOPACS

Grid operators are increasingly offering financial compensation to asset owners who agree to reduce output during congested periods. In the Netherlands, this is formalized as a Capacity Limiting Contracts (CBC).Called in Dutch: “Capaciteitsbeperkend contract”.

Learn more about this type of contract: What’s a Capacity Limiting Contract (CBC)?

Additionally, the Teleport can receive both CBC limits and curtailment signalsImagine you hold a CBC capping feed-in at 700 kW during peak hours. Your aggregator also sends a separate curtailment signal, requesting 500 kW. The Teleport runs both in parallel. If the CBC says 700 kW and the curtailment signal says 500 kW, the Teleport applies 500 kW — the lower of the two. If the CBC says 700 kW and no curtailment is active, you export at up to 700 kW. The two layers do not conflict. They stack.

More details about how it works? Check: Combining CBC and curtailment signals with the Teleport commands simultaneously, applying whichever is more restrictive.

Putting it together

No single strategy covers every site. A large hybrid plant might combine the battery peak shaver, RTI compliance and be connected to markets via a trader, all at once. A simpler C&I solar site might need only a power limiter and self-consumption optimization.

The Teleport runs multiple control strategies simultaneously, with a clear priority order: DSO compliance first, then local protection, then market signals.

If you are unsure which combination fits your project, please reach out to our team. A short conversation about your assets and grid situation is usually enough to identify the right setup.