CONSTRUCTION SITES
Solar energy for construction sites: power for tools and lighting
A construction site without a grid connection does not have to sit idle — with mobile solar energy systems from Mobisun you immediately have power for tools, lighting, security and communication.
From a portable power station for a supervisor or service technician to a complete Solar Trailer or solar energy container for the entire construction site: Mobisun offers scalable systems for every project phase.
Use energy from solar panels during the day, store the surplus in the integrated battery and only use a linked generator additionally when needed. This reduces generator hours, fuel consumption, noise pollution and local emissions on the construction site.
Construction power without waiting for a grid connection
A new construction site does not always have immediate access to a reliable electricity connection. A temporary grid connection can also be limited or only become available later in the project. Mobisun makes it possible to set up an independent power supply from the first project day.
- portable power stations for individual employees
- a mobile 3000Wh generator for small work groups
- a mobile Solar Trailer for temporary construction sites
- a 20ft Solar Container for medium and larger projects
- a 40ft Solar Container for heavy construction and infrastructure projects
The large Mobisun systems combine solar panels, battery storage, an inverter, 230V and 400V connections and optional or integrated generator support. The systems are designed for temporary projects, long-term off-grid use and permanent infrastructure.
What do you use solar energy for on the construction site?
Five common applications where mobile solar energy directly adds value on the construction site.
Electric tools and battery chargers
Charge batteries of drills, screwdrivers, grinders, saws, tackers, lasers and measuring equipment, inspection cameras and electrical hand tools. Smaller Mobisun power stations are particularly suitable for battery chargers and light equipment. For machines with higher continuous power or a strong inrush peak, the Portable Solar Generator, Solar Trailer or Solar Containers are more suitable.
Construction site lighting
Good lighting is needed in construction cabs, work zones, storage spaces, passageways and around temporary facilities. Energy-efficient LED lighting can be connected directly to a portable power station or to the central power distribution of a Solar Trailer or Container. The battery also supplies power after sunset, while the solar panels replenish the energy supply during the day.
- temporary indoor lighting
- site lighting
- storage container lighting
- inspection lighting
- safety and orientation lighting
- lighting in construction cabs and canteen vehicles
Construction cab, office and communication
A modern construction site uses increasingly more digital equipment. For an individual supervisor, a Pro Air 2.0 may be sufficient. For multiple office units, routers, lighting and other facilities, a central Solar Trailer or Container offers significantly more capacity.
- laptops and tablets
- printers and scanners
- WiFi routers and mobile networks
- Starlink
- walkie-talkies and battery chargers
- screens
- planning and registration systems
- access control
- camera and security systems
Security and monitoring
Security cameras, sensors, access systems and mobile transmission equipment often have to continue operating at night and during the weekend. The battery storage of the Mobisun systems supplies power outside solar hours. The Solar Trailer and both Solar Containers support remote monitoring, so system status, energy yield and consumption can be tracked remotely.
Temporary facilities
Depending on the available power, the systems can also be used for canteen and office units, ventilation, refrigerators, coffee facilities, water pumps, drainage and monitoring, charging points for small electric vehicles, temporary workshops and audiovisual presentations and project meetings.
One energy system for every scale
From a compact power station for a mobile employee to the 40ft Solar Container for large infrastructure projects — discover which Mobisun system suits your construction site.
Mobisun Pro Air — power for inspection and mobile work
Compact power station for the supervisor or service technician
154Wh LiFePO₄ · 300W continuous · 600W peak · 4.3 kgThe Pro Air is intended for employees who need power in different places on the construction site. The system has 230V, USB-C, USB-A and 12V and features an integrated 29W solar panel. With the additional 60W bundle, a compact mobile set is created for laptops, phones, lighting, measuring equipment and charging smaller batteries. The complete bundle weighs 6.9 kg and supports simultaneous charging and use.
Suitable for
- supervisors and inspectors
- laptops and tablets
- measuring equipment
- walkie-talkies
- LED lighting
- small battery chargers
- mobile registration
Mobisun Pro Classic — professional mobile energy
More battery capacity for field work and temporary workspaces
259Wh · 300W continuous · 500W peakThe Pro Classic offers more battery capacity for field work, temporary workspaces and employees who want to charge multiple devices. The 100W bundle combines the integrated solar panel with a foldable 100W panel. Under good conditions, the specified charging time is approximately 3.5 effective solar hours. The bundle features 230V, 12V, USB and pass-through charging.
Suitable for
- laptops and communication tools
- multiple small battery chargers
- lighting of a workspace
- camera and security equipment
- mobile service and maintenance teams
Mobisun Pro Air 2.0 — rugged power station for outdoor work
Dust and waterproof according to IP67, modular and repairable
308Wh LiFePO₄ · 500W continuous · 1000W peak · IP67The Pro Air 2.0 is the most rugged portable Mobisun. The aluminum housing is dust and waterproof according to IP67 and the system is modular and fully repairable. With two 100W USB-C connections, 230V, USB-A and 12V, the system can power multiple devices simultaneously. The LiFePO₄ battery is designed for more than 3,000 charge cycles.
Suitable for
- intensive daily outdoor use
- laptops and routers
- Starlink and communication
- measuring and inspection equipment
- lighting
- battery chargers with limited power
- wet, dusty and demanding locations
Mobisun PSG1800 — mobile power for a small work crew
Mobile generator as a step between power station and project systems
3000Wh · 1800W continuous · 4 × 300W solar panelsThe PSG1800 bundle forms the step between a portable power station and the large project systems. The mobile generator has a capacity of 3000Wh and delivers 1800W continuously via a pure 230V sine wave output. The complete bundle contains four foldable solar panels of 300W each. The total solar power is 1200W and the manufacturer specifies a charging time of approximately four effective solar hours under favorable conditions.
Suitable for
- electrical hand tools
- battery chargers
- LED lighting
- small construction cab
- laptop, router and security
- temporary maintenance crew
- work spread across the site
Mobisun Solar Trailer — mobile power plant for temporary projects
Quickly supply autonomous power on any construction site
20kWh battery · 8kWp solar panels · 7kVA outputThe Solar Trailer is developed for construction sites that quickly need an independent energy supply. The solar panels are unfolded on site and automatically oriented towards the sun. The solar tracking system increases yield by up to 25%. The trailer can be operational by one person in about ten minutes and features both a 230V connection and a 400V three-phase connection.
Key specifications
- 20kWh battery storage
- 8kWp solar panels on approximately 30 m²
- 7kVA AC output
- 230V, single phase, 16A
- 400V, three phase, 10A
- integrated or linked 10kVA backup generator
- solar tracking with up to 25% additional yield
- remote monitoring and control
- IP54 protection
- approximately 3.5 tons
- approximately ten minutes setup time
Best choice for
- temporary construction sites
- mobile renovation projects
- smaller and medium-sized construction teams
- lighting and battery charging stations
- construction cab and communication
- projects that regularly change location
- construction sites where quick commissioning is important
Mobisun 20ft Solar Container — complete construction site energy
Central power supply for medium and larger projects
50kWh battery · 13.3kWp solar panels · 22kVA outputThe 20ft Solar Container is the most logical central solution for a medium or larger construction site. The system combines significant battery capacity with a large foldable solar panel field and three-phase power. The container delivers up to 22kVA and features a 400V three-phase 63A connection. This allows the system to form a central construction power supply for multiple work zones and temporary facilities, provided the simultaneous load remains within the designed energy profile.
Key specifications
- 50kWh battery storage
- 13.3kWp solar panels on approximately 60 m²
- 22kVA AC output
- 230V, single phase, 16A
- 400V, three phase, 63A
- 20kVA backup generator
- solar tracking with up to 25% additional yield
- remote monitoring and control
- approximately twenty tons
- approximately thirty minutes setup time
Best choice for
- medium and large construction sites
- multiple construction cabs
- electric tools and battery charging stations
- site and work lighting
- central security and communication
- temporary workshops
- projects with an average construction site profile around 10kW
- long-term projects without full grid connection
Mobisun 40ft Solar Container — energy for large construction and infrastructure projects
Largest system for demanding projects and infrastructure
100kWh battery · 37.4kWp solar panels · 44kVA outputThe 40ft Solar Container is the largest system within the current Mobisun program. With 100kWh battery storage, 37.4kWp of solar panels and 44kVA power, this solution is intended for demanding construction sites and large-scale infrastructure. Remote monitoring provides insight into solar yield, consumption and system status. The linked 40kVA generator can be deployed when solar production and battery capacity are temporarily insufficient.
Key specifications
- 100kWh battery storage
- 37.4kWp solar panels on approximately 170 m²
- 44kVA AC output
- 230V, single phase, 16A
- 400V, three phase, 63A
- 40kVA backup generator
- solar tracking with up to 25% additional yield
- remote monitoring and control
- approximately 27 tons
- approximately thirty minutes setup time
Best choice for
- large construction complexes
- infrastructure works
- long-term projects
- multiple simultaneous work zones
- construction cabs and temporary facilities
- heavy central power distribution
- microgrids
- projects with high energy demand or limited grid capacity
Compare all Mobisun systems for the construction site
The table below is based on the current product specifications. The portable systems are particularly suitable for individual workspaces and light equipment. The Solar Trailer and Containers are designed as central project and infrastructure solutions.
| System | Battery capacity | Solar power | AC power | Deployment | Best application |
|---|---|---|---|---|---|
| Pro Air | 154Wh | 29W, expandable with 60W | 300W | Direct | Inspection, laptop, lighting |
| Pro Classic | 259Wh | 29W, expandable with 100W | 300W | Direct | Mobile workspace and battery chargers |
| Pro Air 2.0 | 308Wh | 23W, expandable with 100W | 500W | Direct | Rugged field work and communication |
| PSG1800 | 3000Wh | Up to 1200W | 1800W | Direct | Small work crew and hand tools |
| Solar Trailer | 20kWh | 8kWp | 7kVA | Approx. 10 min. | Mobile, temporary construction site |
| 20ft Solar Container | 50kWh | 13.3kWp | 22kVA | Approx. 30 min. | Central power for construction site |
| 40ft Solar Container | 100kWh | 37.4kWp | 44kVA | Approx. 30 min. | Large construction or infrastructure project |
Calculate which system your construction site needs
The large systems calculator on Mobisun.com contains a standard profile for a 10,000 watt construction site. In addition, a custom average power in kilowatts can be entered.
The calculator takes into account the average power consumption, an operating duration of 8, 12, 24 or 48 hours, the season, the expected solar production, the available battery capacity and the use of a backup generator. For the seasonal calculation, the calculator uses an average of seven sun hours in summer, 4.5 hours in spring and autumn, two hours in winter and 0.8 hours in cloudy conditions. The calculator then shows, among other things, the battery duration, daily solar production, energy consumption, required battery capacity and the calculated number of generator hours.
Recommended calculator setting on this page
- Application: Construction site
- Average power: 10kW
- Operating duration: 8 hours
- Season: automatic to current season or manual
- Generator: initially disabled
Show two scenarios
- fully on solar and battery
- hybrid use with generator
This allows the visitor to immediately see how many generator hours can potentially be avoided and which Mobisun system best fits.
Fewer running hours of the diesel generator
A solar energy system does not have to completely replace a generator in all situations. On construction sites with heavy machines, winter use or long-term load, a hybrid configuration can be the most reliable solution.
This is how the hybrid system works
- solar panels supply energy during the day
- the battery stores unused energy
- equipment is fed from the solar panels and battery
- the generator starts only when more energy is needed
- the generator can simultaneously feed equipment and charge the battery
All three large Mobisun systems can work together with a generator. Mobisun advises 10kVA for the Solar Trailer, 20kVA for the 20ft Container and 40kVA for the 40ft Container. The advantage is not only lower potential fuel consumption. Also during low-load work, in the evening and during the night, the construction site can be powered as much as possible from the battery.
Why Mobisun on the construction site?
Quick commissioning
The Solar Trailer is operational within approximately ten minutes. The 20ft and 40ft Containers have a setup time of approximately thirty minutes.
Both 230V and 400V
The large systems have connections for single and three-phase power. The Containers have a 400V three-phase 63A connection; the Trailer has a 400V 10A connection.
Solar tracking system
The solar panels of the Trailer and Containers follow the position of the sun. Mobisun reports a possible yield improvement of up to 25% compared to a fixed setup.
Remote monitoring
View energy yield, consumption and system status remotely. This helps with energy planning, fault signaling and management across multiple locations.
Scalable
Use portable power stations for individual employees and a Trailer or Container as a central energy supply. This means that not every application has to be powered from one heavy central system.
Temporary and permanent
The systems are suitable for temporary construction projects, long-term work and permanent off-grid infrastructure.
Practical configurations
Four typical configurations for construction projects, from small renovation crew to large infrastructure project.
Small renovation or maintenance crew
- Pro Air 2.0 for supervisor and communication
- PSG1800 for tools, chargers and lighting
- mobile LED lighting
- separate cable and charging facility
Temporary construction site
- Solar Trailer
- Pro Air or Pro Air 2.0 units for mobile employees
- central power distribution
- battery charging station
- site lighting
- optional generator support
Medium construction site
- 20ft Solar Container
- construction site profile from the calculator as a starting point
- separate groups for lighting, cabs and tools
- remote monitoring
- 20kVA backup generator
- portable Mobisun systems for inspection and security
Large infrastructure project
- 40ft Solar Container
- multiple sub-distribution cabinets
- remote monitoring
- 40kVA generator for additional certainty
- Pro Air 2.0 units for mobile teams
- project-based energy and peak load analysis
From energy profile to working system
Mobisun describes a clear process for the large business systems, from intake to service.
Intake
Record energy consumption, location, planning and applications.
Design and quote
A project proposal based on the energy profile.
Production
Typically four to twelve weeks, depending on complexity.
Delivery and installation
Transport, placement and commissioning.
Service and maintenance
Optional monitoring and preventive maintenance.
A custom proposal is typically prepared within five business days.
Frequently asked questions about solar energy on construction sites
Which system is suitable for an average construction site?
For small jobs, the PSG1800 may be sufficient. For a temporary construction site where mobility is important, the Solar Trailer is the obvious choice. The 20ft Solar Container is suitable for larger construction sites with multiple facilities. The 40ft Container is intended for the heaviest construction and infrastructure projects.
Can I connect electric tools?
Yes, as long as the continuous power and inrush peak remain within the specifications of the system. Especially check sawing machines, compressors, pumps and heavy electrical tools for peak load.
Do the systems supply 400V?
Yes. The Solar Trailer offers 400V three-phase power up to 10A. The 20ft and 40ft Containers feature a 400V three-phase 63A connection.
Does the system also work in winter?
Yes, but solar yield is lower. The Mobisun calculator uses an average of two effective sun hours in winter and 0.8 hours in cloudy conditions. The battery capacity and generator support must therefore be matched to winter consumption.
Is a diesel generator always necessary?
No. When solar production and battery capacity are sufficient, work can be done without a running generator. At higher load or less sun, the generator can be used automatically additionally.
Can a generator be added later?
Yes. The large Mobisun systems can work with a generator to absorb peak loads, increase autonomy and charge the battery.
Are the systems suitable for outdoor use?
The Solar Trailer and both Containers have an IP54 classification and are designed for outdoor use. Connections, distribution boxes and cables must be installed and protected according to applicable regulations.
Can the Solar Trailer be rented?
Yes. Mobisun offers short and long term rental and lease constructions for the Solar Trailer.
Can I view energy consumption remotely?
Yes. The Solar Trailer, 20ft Container and 40ft Container support remote monitoring and control.
Are the systems suitable for permanent use?
Yes. The systems can be used for both temporary construction sites and long-term and permanent off-grid infrastructure.
Clean energy for every project phase
From the first inspection to the full construction site setup: Mobisun delivers a scalable power supply that grows with the project. Use a compact power station for a mobile employee, the PSG1800 for a small work crew, the Solar Trailer for a flexible project and a 20ft or 40ft Solar Container for central construction power.