Microgrid control systems
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General information
| Name of company | elgris |
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| Website of company | www.elgrispower.com |
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| Name of product | elgris EMS |
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| Product is hardware and/or software-platform | hardware & software platform |
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| Product standardized or project-specific? | standardized |
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| Distribution in which countries? | worldwide |
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| Unique selling proposition of the product | Independent EMS system with flexible adoption to project specific needs |
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| Comments | |
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Services of the company
| Company produces microgrid control hardware | yes |
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| Company programs microgrid control software | yes |
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| Company provides system integration of microgrid control hardware and software | yes |
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| Company provides EPC services for microgrid projects | yes |
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| Company provides operations and maintenance of microgrids | yes |
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| Comments | With our certified partners we offer full service |
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Scope of control system
| Central monitoring and control unit (Hardware) | yes |
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| Control unit is standalone product or integrated into other device (if latter, which device?) | Full solution for micro-grids |
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| Other hardware components (e.g. smart meters, sensors, switches, domestic appliances, …) | elgris SMART METER and environmental sensors |
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| Software-Platform for monitoring and control of the microgrid | yes |
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| Software-Platform is a cloud solution or installed on own server or computer? | both is possible |
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| Software compatible with third party hardware? | yes |
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| Hardware compatible with third party software? | yes |
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| Monitoring and/or control of microgrid via smartphone app? | yes |
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| Comments | The EMS can be integrated with the elgris eCloud for online monitoring |
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Microgrid layout
| Which customers is the product aimed at? (e.g. residential, commercial, industrial, community, campus, military, …) | The EMS is targeting applications with a power demand > 250 kW |
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| Focus on offgrid, grid-connected or mobile microgrids? | Focus on grid replacement functionality |
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| How many kilowatts of installed generating power can be integrated? (FROM - TO) | 250 kW - 10 MW |
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| How many different generators can be integrated? | Maximum 32 generators |
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| AC bus system | yes |
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| DC bus system | yes |
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| Hybrid AC and DC bus system | yes |
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| Which control strategy is used to run the microgrid? (e.g. central control, master/slave control, distributed control, …) | Central control with distributed structure |
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| Which components are needed for grid forming in islanding operation? (e.g. battery, diesel generator, …) | Grid forming device eq generator or inverter |
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| Can the system be retrofitted to existing energy system assets? | yes |
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| Can the system be expanded modularly after initial commissioning? | yes |
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| Comments | By using standarized communication the system can easily expanded |
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Connectivity
| Supported communication protocols (e.g. Modbus TCP, Sunspec, KNX, Zigbee, …) | MODBUS RTU / TCP, SunSpec, CAN, RS-485 |
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| Supported communication interfaces (e.g. RS485, Ethernet, Wireless LAN, analog inputs an outputs, …) | LAN, RS-232, RS-485, CAN |
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| Connectable generators (e.g. solar PV, wind turbines, CHP, diesel generators, fuel cells, hydro power plants, …) | All generators with the elgris SMART METER |
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| Connectable storage systems (e.g. batteries [lead, lithium, redox flow, …], flywheels, heat storage, …) | All storage with a control system (BMS) |
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| Connectable loads (e.g. heat pumps, heating boilers, charging stations for e-mobility, refrigerators, …) | All kind of loads with a control input (load management) |
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| What components/brands can be integrated 'plug & play'? | All major brands with an open interface are supported |
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| What components/brands have to be integrated manually? | Brands with a closed communication interface |
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| How are components integrated manually? (e.g. connection boxes, command-line interface, ...) | Intergated webserver for configuration |
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| Software-Platform has graphical user interface for integration and configuration of external devices? | yes |
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| Software-Platform has graphical user interface for programming energy management options? | yes |
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| Communication between control system and energy system assets is wired or wireless? | both |
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| SCADA integration possible? | yes |
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| Other options to connect the microgrid to a higher-level distribution grid (e.g. smart meter gateway, CLS-interface, ...) | MODBUS TCP interface with Sunspec mapping |
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| Can smart home systems be integrated into the microgrid? | no |
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| Is the data encrypted during data transfer? If so, how? | Yes with TLS |
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| How is the system protected against threats from outside? | With encryption and passwords |
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| How are firmware updates realized? | Locally and remote |
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| Comments | By using Ethernet connection full flexibiltiy is reached |
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Functions
| Grid conntected operation | yes |
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| Islanding operation | yes |
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| Automated transition from islanding to grid-connected mode and back | yes |
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| Time required for transition from grid-connected to islanded mode (in seconds) | Depending on the type of coupling this can be 0 seconds for DC coupled systems |
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| Uninterruptible Power Supply (UPS) | opt. |
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| Operation is also possible without connection to the internet | in grid connected and islanding mode |
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| Operation is also possible without connection to control room of higher-level distribution system operator (DSO) | in grid connected and islanding mode |
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| Asset control of distributed energy resources | opt. |
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| Load management defining curtailable loads and priority loads | opt. |
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| Automated dispatch control and optimization | yes |
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| Automated Re-dispatching in response to external orders or unplaned internal events | opt. |
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| Internal voltage and frequency regulation in islanding mode | yes |
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| Real time active and reactive power control | yes |
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| Control of power exchange and voltage levels at point of interconnection | opt. |
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| Aggregated ramp rate control at point of interconnection | yes |
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| Phase balancing between different AC phases | opt. |
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| Black start capability | yes |
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| Comments | |
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Energy management options
| Increase in self consumption | yes |
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| Increase of self-sufficiency | yes |
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| Peak Shaving | yes |
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| Charging of electric vehicles | yes |
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| Energy management of thermal energy assets? (e.g. heat pumps, thermal storage, ...) | yes |
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| Backup power | yes |
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| Zero feed-in | yes |
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| Ancillary services for public grid (e.g. frequency regulation, reactive power control, …) | P/Q, F/Q, kVAR and PF control |
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| Consideration of weather forecasts | opt. |
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| Consideration of energy load predictions | opt. |
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| Consideration of changing energy prices on the energy market | opt. |
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| Use of AI or self-lernings algorithms | no |
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| Blockchain based billing and/or pay as you go solution | no |
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| Participation in the energy market | no |
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| Comments | |
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Price indication
| Hardware: One-time acquisition costs for central control unit (without VAT) FROM - TO (approx. retail price in Euro) | 495 - 2995 |
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| Hardware: Monthly maintenance costs for central control unit (without VAT) FROM - TO (approx. retail price in Euro) | 0 - 50 |
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| Hardware: Costs for other necessary system components? (e.g. smart meters, switches, …) | 125 (elgris SMART METER) |
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| Software: One-time acquisition costs (without VAT) FROM - TO (approx. retail price in Euro) | Included in hardware |
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| Software: Monthly maintenance costs (without VAT) FROM - TO (approx. retail price in Euro) | Included as a SLA with the hardware |
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| Are there renting or leasing options? If so, what are those options? | |
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| Comments | The elgris EMS system is a ready to use solution for a micro grid control system. Depending on the SLA all variable costs can be covered. The complete system is bankable. |
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| Price information available | yes |
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Best practice project
| Information on reference projects available | yes |
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| Best practice project - ongrid | The elgris ZEROplus is based on the elgris EMS platform and is used world-wide in many applications where the export of solar power is prohibited and self consumption is increased by intellignet load switching. |
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| Best practice project - offgrid | The elgris EMS controller is installed on Airport of the Galapagos Islands to reduce the Diesel consumption. |
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Data update
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