OFF-GRID Engineering
Solar PV Designs for Off-Grid Applications
Reliable, Sustainable, and Custom Energy Solutions
Features and Characteristics of ROSEC Designs
- Modular Designs, Flexible Configurations and Scalable Systems
- System wiring, protection, and grounding according to codes and standards
- Selection of appropriate components in accordance with the type of application and energy needs
- Sizing of PV Array, DC/DC Charge Controller and the Battery in PVsyst and SAM
- Due diligence to critical loads, normal loads, peak loads and surge-causing loads
- Optimally-designed architectures and configurations for hourly load profiles
- Battery Sizing takes into account temperature, days of autonomy, depth of discharge, technology, lifecycles . . .
- Load Categorization and selection of inverter with sufficient surge capability
- Remote Monitoring and energy management via web portals and mobile apps
- Selection of the system voltage according to the size of the loads and daily energy requirements
- Single phase, three phase, and split-phase solutions
OFF-GRID APPLICATIONS
ROSEC Solar specializes in the design, engineering and optimization of off-grid solar PV systems tailored to the energy needs of standalone applications.
- Residential off-grid systems in remote areas
- Isolated schools and colleges, places of worship
- Health Care Centers
- Centers of economic activity e.g. workshops and micro-industry
- Solar Cabins and Huts
- Telecom Towers
- Solar Charging Stations for laptops, mobile phones, power banks and lanterns
- Cold Room in Shipping Containers
- Fishing Boats
- Solar Home System
- Rural Electrification supplying power to a cluster of households
- Decentralized Rural Electrification at village level
- Solar Pumping Systems
- Portable off-grid Systems for Camping and Land Expeditions
- Remote Sensing
- Video monitoring of construction sites with cameras and lighting on the mast
- Aviation Towers
Off-grid Systems and Architectures
DC-coupled Off-grid System for DC loads
Always organized around battery storage with the required number of days of autonomy.
During daytime, solar power produced is consumed directly. Surplus energy is stored in the batteries.
Remote monitoring through web portal can be provided.
No controller for energy management is required.
DC-coupled Off-grid System for AC loads
A Battery Inverter is included in the design for ac loads.
Balanced series-parallel wiring for battery banks to ensure longer battery life.
Code-compliant designs that ensure efficiency and Electrical Safety.
Remote monitoring through web portal can be provided.
AC-coupled Off-grid Systems
Modular, flexible and expandable to meet increasing energy demands.
Solar, hydro, wind energy sources and conventional gensets can be integrated on the AC bus.
Ideal for rural electrifications where utility grid is not available.
The bi-directional Battery Inverter forms the AC grid and at the same time regulates the voltage and frequency on the grid. It maintains the energy balance between net generation and consumption.
