ePowerControl HFS

Hybrid Fuel Saver Controller

A solar-diesel integration solution for power plants with
multiple gensets ranging from 300kWp to 3MWp.

Why choose ePowerControl HFS?

Ensured minimum genset loading

Adjust solar inverters power to prevent the genset from running at a low load, ensuring efficient and reliable performance.

Minimize your fuel consumption

Adjust solar inverters power to produce a maximum of clean energy and prevent the gensets from running at a low load, ensuring efficient and reliable performance

Grid feed-in management

Curtail solar power to prevent leakage to the main grid, minimize wastage and maximize the utilization of PV energy on-site.

Power factor Improvement

Through the reactive power management of solar inverters, improve your power factor both in grid-tied and islanded configurations.

Reclaim control of your site operations

Seamlessly integrate solar diesel hybrid system to minimize fuel consumption. 

Grid-tied plant? Our Zero Export Controller will ensure compliance with national injection limitation regulation.

configuration &
plant management
Compatible with
95% equipment
of the market
Flexible architecture
that adapts to the scaling of your project

How does our hybrid fuel saver controller work?

Ensure control with integrated features

Management of solar inverters to limit export to the grid and import (peak shaving) from the grid in grid-tied configuration.

Reactive power is controlled dynamically to regulate PF at PCC or genset level within a configured range.
Includes the possibility to prioritize active or reactive power objectives.

Limitation of ramps for all controlled assets, for both active and reactive power control.

Control of solar inverters to respect minimum loading of gensets. Control of gensets can be done individually.
Maintenance mode for assets to keep logging data from assets which should temporarily not be used for control. Optimized failsafes to stop devices when communication of key elements are missing.

Monitor your assets with data Intelligence

From all linked devices on site (meters, solar inverters, genset controllers, weather stations (irradiance/t°), and I/O modules), & offer a secure local storage.
  • Locally, over USB,
  • Locally, over Modbus gateway
  • Remotely, using ePowerMonitor or compatible third-party monitoring platforms
    (FTP push, API integration).
Unlock monitoring capability with our hypervision, platform ePowerMonitor

Elum has brought reliable solar + diesel integration to these power plants

Frequently asked questions

ePowerControl HFS is suited for the control and monitoring of solar energy systems integrating PV plants + grid + diesel generators, with a minimum capacity of 300 kWp.
In case of multiple gensets, the controller dispatches the total genset active power setpoints to the different gensets configured individually. The produced dispatch ensures that no genset active power setpoint exceeds the primary rated power or the genset minimum loading defined.
The controller is not a protection relay. it is important to install a reverse power protection.

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