Looking for a single tool that can balance your on-site generation (like solar panels and batteries) and consumption while respecting grid limits and contractual agreements? Meet the Teleport Gateway. 

The Teleport serves 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 rely 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 about the cloud vs. local EMS, we recommend you to take a look at: What’s an on-site EMS? with the ability to run various active control strategies, making real-time decisions to manage your energy assets based on actual conditions and predefined rules. It makes sure your grid connection stays safe. 

Let’s walk through how these strategies work in practice and see how they can improve your operations.

Staying within the lines: safeguarding grid limits and smoothing peaks

One of the most critical jobs of the Teleport is ensuring your site doesn’t overload the local grid connection. This isn’t just about being a good neighbor; it’s often about meeting contractual agreements with your grid operator or preventing physical damage to equipment. These limits can be about how much power you feed into the grid (feed-in) or how much you draw from it (consumption / take-off).

A quick word on physical vs. contractual limits (and why margins matter)

No matter how advanced your system is, there’s always a risk that real-world (physical) limits can be exceededTo learn more, read our explanation in the following article: Zero feed-in, explained – especially if you have multiple energy assets running at once. It’s because controllers measure the power flow and then react. This takes a fraction of a second, but in that instant, a limit could technically be breached. 

That’s why, especially for physical limits (like circuit breakers), it’s wise to set a safety margin. We typically recommend setting the controller’s limit 10-20% below the actual physical breaking point, depending on how fast their output can change (ramp rate), and the fluctuation in your local load. In situations with no on-site load, you can use “reservation limiters,” which hold back a certain portion of power capacity to reduce the chance of going over physical limits.

Contractual limits might sometimes allow for brief excursions if the average over a period (like 15 minutes) is okay.

Now, how does the Teleport handle these limits?

Managing solar (PV) and wind power

Simple static limits

When you have solar or wind systems that might feed too much energy into the grid, a static power limit can be your first line of defense. You set a maximum (upper limit) and a minimum (lower limit)In other words, you can tell the Teleport: “Never let this solar panel produce more than X kW” or “Don’t curtail below Y kW.” for each asset.

This is straightforward and works well in simple situations, perhaps where there’s very little local electricity use.

Any curtailment commands you send through the Teleport can be “scaled” according to these limits if you wish. In other words, you can normalize your commands so they fit within the upper and lower boundaries you’ve defined.

Dynamic limits

Static power limits work, but what if you want more flexibility? That’s where dynamic control comes in.

Instead of a fixed limit, the Teleport watches the grid connection and local conditions in real-time and adjusts the output accordingly. For instance, if your building starts using more power locally, the Teleport can allow the solar panels or wind turbines to produce more, because less power will flow to the grid. We offer different ways to do this:

• Based on active power (W): Ideal for meeting contractual feed-in limits, which are often specified in Watts (W). It measures the actual power flowing and adjusts the solar or wind output to stay below the agreed threshold.
• Based on current (A): Essential for protecting physical infrastructure like cables and transformers. These components heat up based on electrical current (Amps, A). This controller measures the current on each phase and dials back the solar output if any phase gets close to its physical limit, even if the phases aren’t perfectly balanced. Remember that safety margin!
• Based on temperature: If you have a temperature sensor on a critical transformer, the Teleport can automatically reduce the output if the transformer starts getting too hot, preventing overheating.
• Power reservation (for physical limits with no local load): In situations where you cannot risk any temporary violation of a physical limit (like a fuse) and there’s no local electricity consumption, we can use a reservation approach. The Teleport reserves a maximum output capacity for each connected asset, ensuring their combined total never exceeds the limit, rather than reacting after a measurement.

Managing battery systems

Batteries add another layer of flexibility, but also complexity. They can charge or discharge, responding to signals perhaps 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 here as a gatekeeper. When an external signal tells the battery to charge or discharge, the Teleport checks if doing so would violate grid limits (based on real-time measurements).

If it would, the Teleport adjusts the instruction sent to the battery, reducing the charge/discharge power just enough to stay within bounds.

It can be based on:

• Power (W): Checks against contractual power limits.
• Current (A): Checks against physical current limits.

Cascade control (managing multiple connections)

If you have several grid connections managed by individual Teleports (e.g., different buildings on a site), and these all feed into one main connection point with its own limit, this strategy coordinates them.

It ensures the total power across all connections respects the main limit, while each individual connection also respects its local limit.

Managing solar (PV) and batteries together

You might want to control both solar panel inverters and batteries at once. The Teleport can orchestrate them either by limiting their joint output or by automatically commanding the battery to charge or discharge (peak shaving).

Multi-asset power limiter

A versatile control strategy that manages both PV and battery assets simultaneously against a single grid limit (contractual or physical). It generally prioritizes PV generation (letting you use or sell your solar power first) before adjusting the battery. It limits both feed-in and consumption as needed.

Battery peak shaver (active smoothing)

This controller goes a step further. It doesn’t just limit assets to prevent violations; it actively uses the battery to counteract peaks.

• If the local load spikes above the grid consumption limit, the battery automatically discharges to cover the excess.
• If solar generation surges above the grid feed-in limit (and curtailment isn’t enough or desired), the battery automatically charges to absorb the excess.
• You can fine-tune this – perhaps only shaving load peaks, or only generation peaks, or both. It can often work with 15-minute average limits common in contracts.
• It includes basic State of Charge (SoC) management – you can schedule target SoC levels (e.g., “ensure battery is 90% full by 8 AM”) or set aside some battery capacity specifically for peak shaving versus other tasks like energy trading.

Peak shaving for self-consumption

A specific mode of the peak shaver designed to maximize the use of your own solar energy. The battery charges with excess solar power and discharges when you’d otherwise import from the grid, aiming to keep grid exchange near zero, within the battery’s capabilities.

Battery power reservation limiter (no local load)

Similar to the PV reservation strategy, this is for combined systems where you need absolute certainty against exceeding physical or contractual limits, and there’s no local load present. It pre-allocates capacity to PV and battery, always prioritizing PV first.

Going beyond local control: participating in grid services

The grid needs help staying balanced and non-congested, especially with fluctuating renewables. Your assets, managed by the Teleport, can go beyond local control and provide valuable services:

Enexis Zonbalans (Netherlands)

For participants in 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 (sunlight intensity) data and a specific control curve to adjust solar feed-in, helping manage local grid capacity. Requires an irradiance sensor.

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. The Teleport can limit PV or wind output relative to its theoretical potential output (calculated using weather data like irradiance) to meet aFRR requirements.Learn more in our detailed explainer: Solar irradiance power limiter for aFRR Requires appropriate sensors.

Realtime Interface (RTI)

The Teleport can act as an approved ‘Customer Endpoint’ for the Realtime InterfaceThe 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.

Learn more by checking our Realtime Interface overview or by downloading our whitepaper. requirements (mandatory for all new or updated grid connections >1MW in the Netherlands).

Capacity Limiting Contracts (CBC) and GOPACS

In many areas, grid operators are starting to offer contracts to change your feed-in or consumption limits at certain times against a financial compensation, called Capacity Limiting Contracts (CBC).Called in Dutch: “Capaciteitsbeperkend contract”.

Learn more about this type of contract: What’s a Capacity Limiting Contract (CBC)? If you’re part of such a program, the Teleport can help by allowing you to schedule those limits.

Additionally, the Teleport can receive, prioritize, and execute both CBC and curtailment signalsCurious about how it works? Check: Combining CBC and curtailment signals with the Teleport to allow you to combine both services.

Other integration options

Modbus TCP server (only PV and wind):
For sites needing local integration with other industrial control systems, the Teleport can run a Modbus TCP server, allowing other systems to read data or potentially send commands locally.

Bringing it all together

Grid limits and contract rules can feel complicated. But with the Teleport, you have a centralized tool that stays watchful, reacting to real conditions and external schedules. Whether you’re trying to avoid short-term overloads, offer balancing or congestion management services, or make the best use of your assets, these strategies help you stay both safe and profitable.

In a sector where power flows can change in an instant, it’s important to have a reliable system in place. By carefully choosing and configuring these control strategies, you can reduce risk, stay within your contractual obligations, and support an efficient and safer grid.

If you’d like to explore which strategies best fit your specific project or operational needs, please reach out. We’re always happy to discuss how smart local control can solve your energy challenges.