Energy Management · for the business market

A smarter way to handle
energy — from
solar park to factory.

We design and build energy management systems for solar parks, batteries and industrial installations — and process the data they produce. From 5-minute-class monitoring and dynamic EPEX-driven control to large-scale data processing: one engineering approach, from metering point to report.

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Our mission

End-to-end energy intelligence.

Energy is getting complex. Variable prices, distributed generation, battery storage, grid congestion — decisions that used to play out on hourly timescales now happen in seconds. We develop the software and the hardware that keep owners in control — from commercial parks to the data infrastructure beneath them.

For industry

Multi-site monitoring, performance analysis and command-and-control for solar parks, battery systems and industrial installations. Per-site telemetry, EPEX-aware programs, external FTP mirroring, archive sweeps — all from a single portal.

Solar parks

Professional monitoring of solar parks and PV portfolios: per-inverter telemetry, performance ratio to the IEC 61724 method, smart alarming and branded reporting. From commercial rooftop to utility-scale.

Data processing

We ingest, structure and unlock data at any scale — from energy and metering data to financial data, in batches or live. From a large collection of separate files to a 50 GB+ database, with hot and cold storage.

What we build

Insight into what's happening.

From site monitoring to dynamic control and grid quality — our platforms go beyond dashboards alone.

Solar park monitoring

Real-time production and performance per inverter, MPPT and string. Compare expected to actual yield, spot anomalies before they cost money, and catch failing panels or strings early.

Curtailment control

Dynamic regulation driven by grid congestion, EPEX prices or pre-defined profiles. Per-inverter setpoints, battery strategies and program schedules — automatic or hands-on.

Power-quality monitoring

Voltage dips, harmonics, frequency deviations and phase imbalance — monitor grid quality at every POC. Compliance reports and alerting help substantiate incidents.

Battery & Storage

Energy storage — used intelligently.

A battery is more than a buffer. Driven correctly it earns money back via EPEX arbitrage, dodges grid-congestion penalties and delivers frequency services. We connect your battery management system to our EMS and run the strategy that fits — your profit, not the supplier's.

Battery management & integration

Full integration with BYD, Tesla, Sungrow, SMA, Sungrow ESS and other lithium systems up to 1 MWh+. SoC, SoH and cell-balancing data flow straight into the dashboard, with alerts on deviations before they escalate into incidents.

Strategies that pay back

Peak shaving for industrial peak demand, EPEX day-ahead arbitrage, self-consumption optimisation and — for larger systems — frequency response (FCR/aFRR) on the TenneT imbalance market. Configured per site, monitored on one screen.

Connectivity

Robust networks for industry and IoT.

No monitoring without connection. We design, build and operate the networks that keep your systems online when you need them.

IoT networks

Sensors, smart meters and field devices get connectivity via 4G/5G, LoRaWAN or wired. End-to-end VPN, edge routing and remote management — scalable from a handful to thousands of units.

Industrial networks

Modbus, OPC-UA, IEC 61850, BACnet — we build the gateways that get OT and IT talking. Cybersecurity-compliant, redundantly engineered, with visibility into every link.

FAQ

Frequently asked questions about EMS.

The questions we hear most often about Energy Management Systems, battery integration, curtailment and what we can do for your site.

What is an Energy Management System (EMS)?
An EMS is software (and often hardware) that measures, analyses and steers where energy goes inside an installation. For an industrial site it combines solar parks, batteries, inverters, meters and the grid connection into one controllable whole. A good EMS improves performance, prevents downtime and turns dynamic tariffs into concrete savings.
Which industrial installations is your EMS suitable for?
Solar parks (from a few hundred kWp up to 30 MWp), wind farms, battery-energy-storage systems (BESS), industrial consumers with multiple sites and hybrid installations. The platform scales with you: one site or a portfolio of dozens, with multi-site dashboards and portfolio-level aggregation.
How does a battery or energy-storage system integrate with your platform?
We connect via Modbus, OPC-UA or vendor APIs (BYD, Tesla, Sungrow, SMA, Sungrow ESS). The EMS reads SoC, SoH, cell-level diagnostics and voltage balancing, and writes charge- and discharge setpoints back. On top of that comes the strategy: peak shaving, EPEX arbitrage, self-consumption or frequency response — depending on your business case.
What is curtailment and when does it make sense?
Curtailment is the deliberate down-regulation of generation (solar or wind) to avoid grid congestion, dodge negative EPEX prices, or stay within an agreed transport capacity. We regulate per inverter or at site level, driven by real-time TenneT signals, EPEX prices or pre-set profiles. Fully automatic, with manual override always available.
Which vendors and network protocols do you support?
Inverters: SMA, Huawei, Sungrow, GoodWe, Solis, SolarEdge, Fronius. Batteries: BYD, Tesla, Sungrow ESS, SMA. Protocols: Modbus TCP/RTU, OPC-UA, IEC 61850, BACnet, MQTT, REST/HTTPS. For logger uploads we provision per-site SFTP accounts; for real-time control we use TLS VPNs with dynamic peer allocation.
How does an EMS project at 1AITE start?
First a conversation about your installation, your goals and your grid connection. Then a pilot on one site (typically 4–8 weeks, monitoring plus integration of existing hardware), followed by rollout to the wider portfolio. We work vendor-agnostically — no lock-in to one inverter brand or one battery supplier.
Our portals

One platform, multiple services.

Customer or partner? Open the portal, or read more about our services.

Industrial

Elteq EMS Portal

Full EMS platform for solar parks, wind farms, batteries and industrial assets. Multi-site dashboards, performance ratio, weather data, EPEX prices, alerts, REST API and logger onboarding.

portal.elteq.nl Open portal Service

Solar parks

Monitoring of solar parks through the Elteq platform: per-inverter telemetry, performance ratio and branded reporting — from commercial rooftop to utility-scale.

More about solar parks Service

Data processing

Data processing at any scale: ingest, structure, analyse and unlock energy, metering and financial data — batch or live, with hot and cold storage.

More about data processing