A temporary power project requires stable energy, a quick installation process and adaptability to the project site changes. There are many temporary projects including construction sites, mines, remote infrastructure, temporary camps, and emergency projects that may require temporary power that could be installed and relocated quickly.
LZY Energy offers mobile hybrid temporary power using the combination of foldable solar PV container, energy storage batteries, and diesel generator. Solar energy is the main energy supplier during the day, battery stores the excess of solar energy for future use, and diesel generator supplies extra energy when solar and battery cannot meet the demands.
How the Power System Operates
Operating principle is simple.
Solar PV power is used during the day directly supplying connected loads. It is the preferable operating principle because the produced solar energy can be used immediately on the site.
If solar power generation exceeds the demand, excess energy is used to charge batteries.
For example, if the total power generated by solar PV system is 150 kW and current load demand equals 100 kW, solar power supplies the load and the remaining excess of energy is charged in the battery.
At night, solar power stops to generate electricity, and the battery continues to supply the energy needed for the loads. It means that the energy accumulated during the day supports the site at night.
Diesel generator is used only when solar power generation and battery energy are not enough. It can be used to provide additional power during prolonged periods of lack of solar power production, extra high loads or minimal state of battery charge.
The basic sequence of operation is:
- daytime – solar powers the loads directly, excess solar power charges the battery;
- night time – battery powers the loads;
- lack of solar and battery power – the diesel generator provides the additional power.
Energy management system is used to manage these power sources and adjust the operating modes according to the actual conditions of the project.
Foldable Solar PV Container for Mobile Application
Unlike the permanent power projects, temporary power has one requirement that is not relevant to the permanent ones – the equipment must move along with the project.
Installation and dismantling of the traditional ground-mounted solar system requires significant effort. It is acceptable for the long-term power project, but it is not very convenient for temporary project that will stay in one place only for some time.
LZY Energy foldable solar PV container is made specifically for these kinds of projects.
Photovoltaic array is integrated into the mobile container which can be transported to the project site and unfolded to start the operation. When the project is finished or it is necessary to relocate the power system, the solar structure can be folded again to transport it.
The container can be equipped with the battery storage, PCS or hybrid inverter, electrical distribution systems and diesel generator according to the project requirements.
Thus, it provides a full mobile power station rather than using several separate systems that should be transported and installed independently.
Energy Storage Systems Help Make More Effective Use of Solar Energy
One of the main benefits of solar power and battery storage is that solar energy can be stored rather than used immediately.
During the period of bright sunny weather, there can be a situation when solar power generation exceeds the immediate load demands. Instead of waste of the surplus or reduction of PV power, the excess of solar power can be stored in the battery.
Stored energy can be used at night time.
This is especially useful for the projects that operate not only during the day but during the evening or night too. Photovoltaic array can provide energy to the project even after its production ceased.
Energy storage can also improve handling of short-term load fluctuations. When some equipment is started or many loads are running simultaneously, the energy stored in the battery can provide additional power, and there is no need to start the diesel generator immediately.
Diesel Generator for Additional Power Supply
The diesel generator is still an essential component of the hybrid system when there is the need for reliable power reserve.
However, it does not have to work as the main source of power for the whole project duration.
When the solar generation is possible and sufficient, loads can be supplied by solar power directly. If there is no solar generation, battery power can be used. The generator can be used in case when neither of the above sources is able to supply sufficient energy.
This approach allows reducing the operating time of the generator and fuel consumption while retaining the reliable power reserve.
It is especially useful at remote projects where transporting of the fuel and generator maintenance is quite expensive.
Applications for Hybrid Temporary Power
Mobile solar hybrid power system can be used for many temporary and remote applications such as:
- construction sites;
- mining projects;
- remote infrastructure;
- temporary worker camps;
- emergency response;
- disaster relief operations;
- outdoor events;
- temporary industrial facilities;
- remote telecommunication sites;
- agricultural and off-grid projects.
Construction site can serve as a good example since its power demand varies throughout the day. There can be offices, lighting, pumps, tools, compressors, and other heavy equipment operating at different time.
Hybrid power system can use solar power directly when it is available, use excess generation to charge batteries and use diesel generator when additional power is needed.
Proper Configuration Design
Each temporary power project has different load requirements, operating hours, solar conditions, and backup requirements. Thus, LZY Energy does not limit the solution to the certain standard configuration.
The solar PV power, battery power, inverter or PCS and diesel generator can be configured according to the actual project requirements.
Main considerations in this case are:
| Parameter | Design Consideration |
|---|---|
| Peak load | Determines inverter and generator capacity |
| Daily energy consumption | Influences solar and battery capacity |
| Daytime load | Determines how much solar can be used directly |
| Nighttime load | Determines required battery capacity |
| Solar conditions | Affects expected PV generation |
| Load profile | Determines how the system should operate |
| Backup requirements | Influences diesel generator capacity |
| Project duration | Helps evaluate system economics |
| Site conditions | Affect transportation and deployment |
For example, the construction project which requires power mostly during the day time can need a large PV power system and moderate battery power capacity. Remote facilities which require 24/7 operation may need more battery power and larger generator capacity.
Thus, the proper configuration depends on the actual project rather than the standard product.
Contact LZY Energy for Your Project
LZY Energy offers project-based configuration of the solar hybrid temporary power system. We can provide a combination of the foldable solar PV container, battery energy storage, power conversion equipment and diesel generator according to the actual site requirements.
To receive the appropriate configuration and quotation, please contact us providing the following information about your project: required load power, daily energy consumption, operating hours, project location and backup requirements.
Our team can analyze the project and propose the right capacities of solar, battery and generator power for you.
Contact us for the customized solar hybrid temporary power solution and project quotation.