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Technology

SOLAR HYBRID TECHNOLOGY

Reliable power for the 21st century

Solar-Diesel
Hybrid Systems

Our core offerings are cost-effective, reliable and practical solar PV-diesel hybrid systems.

These systems are made of modular, transportable solar generators and conventional ultra-high efficiency diesel generators. In a typical configuration, the solar system covers up to 95% of the daytime demand, while the diesel generators guarantee reliable power 24/7, even when the sun isn’t shining.

Our proprietary hybrid controller enables the smooth interaction of all components of the system by continuously monitoring load, solar production, the residual load on the generators, and spinning reserve requirements. If any parameter changes, the system reacts in milliseconds to adjust generator output to the new requirement.

At low diesel prices, this combination is the most cost-effective configuration for systems with loads greater than 100 kW and relatively steady load profiles (e.g. camps, construction site offices, islands, etc.).

Solar-Battery
Hybrid Systems

Solar-battery systems are often the best choice for small systems (<100 kW load), as the efficiency of diesel generators drops rapidly below 250 kVA.

Another good application for solar-battery systems is peak shaving of industrial loads (e.g. tower cranes on construction sites, concrete batching plants or large mill motors in mining), thereby helping to increase power quality and reduce strain on the diesel generators. Batteries can also serve as buffer for hybrid grids with very high (>80%) solar penetration, allowing to switch of the generators during the day.

We use  state-of-the-art lithium-ion batteries packaged in outdoor-rated IP65 enclosures to withstand the harshest climate conditions in the Middle East and Africa. We combine these batteries with highly-efficient high-power inverters to provide full backup and black start capability.

Real-time
Monitoring

We include a full remote monitoring & management suite in all of its solar-diesel and solar-battery hybrid plants as standard equipment.

All system parameters are monitored remotely from our control center in Dubai, allowing our team to continually assess and monitor the efficiency of our plants under real-life conditions in the field, no matter how remote the site. In case any problems are spotted by our control center, a service team is sent to the plant to correct the issue before they lead to operational problems for our clients.

We have installed hundreds of sensors measuring everything from ambient temperature to fuel flow, power quality and solar radiation on our fleet of mini-grids. This “Big Data” approach allows us to continually improve our performance, preventing outages and lowering costs in the process. It also enables us to offer our clients advice on how to improve the energy efficiency, thereby further lowering power costs and CO2 emissions.

Robotic
Cleaning

Soiling losses are one of the major sources of solar PV production loss for installations in the UAE with roughly 2-4% of yield loss annually. This includes a normal wet or dry cleaning routine twice a month and additional cleaning in the event of a storm.

Enerwhere is the first solar utility to implement robotic cleaning for large-scale commercial and industrial sites in the UAE.

Installation of robotic cleaning systems eliminates the need for manual labour and minimises water consumption, thereby reducing overall maintenance costs while simultaneously enabling higher solar yield. With state-of-the art control and remote monitoring, Enerwhere is able to fully automate O&M for solar plants and deliver significantly better performance.

Working with a wide range of vendors, Enerwhere is optimizing and standardizing the use of this new technology to implement robotic cleaning across all our plants.