Energy storage for construction sites — stable power without a diesel generator.
Weak grid connections, tripped breakers and sudden power peaks can stop a team at the worst moment. A greenSANE mobile energy storage system works as a buffer: it charges from whatever connection you have, and when multiple tools run at once, it delivers exactly the power you need. Result: less downtime, less noise, and no daily fuel logistics or generator service hassle.
Construction-site problems solved by greenSANE
Power — without the classic limitations.
The storage charges continuously from the available source and delivers power exactly when tools need it — without interruptions.
Energy storage buffers peaks, stabilizes work and reduces downtime risk.
Your power source becomes simpler, cleaner and easier to operate.
Power can be delivered wherever it is needed — without constant re-planning.
Less noise and no exhaust — useful in strict environments or enclosed/underground areas.
The system can also be configured as a tower with monitoring and/or lighting.
How energy storage works on a construction site
1) Grid + storage — it charges in the background
- even with a weak/old connection, it can charge steadily
- you don’t need to “plan the build around power limits”
2) Storage delivers the power your team needs
- it supplies peak demand moments (many tools at once)
- your crew works — power is not the bottleneck
3) Optional: hybrid operation
- works with PV or a generator (depending on scenario)
- a generator can become backup support, not the primary source
greenSANE offer
Products, variants and configuration paths:
What do you get as a “ready-to-work system”?
- a mobile storage unit sized (kWh) to your work mode
- a clear on-site usage scenario for construction
- safety options: monitoring and/or lighting (tower)
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Answer a few questions and click “Send inquiry” — your mail app will open with a pre-filled message.
Construction-ready variants
Two mobile variants — plus a clear “diesel generator vs storage” energy cost example.
Assembly and commissioning in Poland — shorter delivery path and predictable lead times.
Supply chain and serviceability built around Europe — stable quality and easier support.
Faster response and simpler warranty/operations support on site.
57.4 kWh (trailer up to 750 kg)
For mobile teams and small/mid sites — fast deployment and relocation.
When does it make sense?
- buffering power peaks on a weak connection
- powering tools and site facilities without splitting crews by circuit limits
- frequent moves between projects
Output power (up to): 15 kW
Usable energy (typical): ~46 kWh
Avg. charging time: ~5–6 h
Typical scenario: charging from ~11 kW (real ~9–10 kW after losses).
Warranty: 10 years (SOH > 80%)
Install mode: Plug & Play
Monitoring: via inverter
Built in Poland + local service = faster support.
DIESEL GENERATOR (fuel only; typical 50 kVA / ~40 kW class @ 75% load):
• Example A: 8.7 L/h at ~75% (~30 kW) → 0.29 L/kWh
• Example B: 8.9 L/h at ~75% (~30 kW) → 0.30 L/kWh
If diesel = €1.50/L (example):
• 0.29 L/kWh × 1.50 = €0.44/kWh (fuel)
• 0.30 L/kWh × 1.50 = €0.45/kWh (fuel)
ENERGY STORAGE:
• Cost ≈ electricity price × 1.11 (assuming ~90% round-trip efficiency)
• €0.20/kWh → €0.22/kWh
• €0.30/kWh → €0.33/kWh
• €0.40/kWh → €0.44/kWh
Note: above compares “energy out” only. Generators also add service, oil, transport and handling costs.
114.8 kWh (trailer up to 3.5 t)
For larger sites: more points of use, longer runtime, heavier loads.
When does it make sense?
- more crews and simultaneous work
- longer shifts, more points of use
- higher loads and a need for stable power
Output power (typical up to): 30 kW*
Usable energy (typical): ~92–100 kWh*
Avg. charging time: ~10–12 h
*If you provide final usable energy/power values for 114.8 kWh, we’ll lock them in as exact.
Warranty: 10 years (SOH > 80%)
Install mode: Plug & Play
Monitoring: inverter + remote (optional)
Built in Poland + local service = shorter response time.
DIESEL GENERATOR (fuel only; typical 50 kVA / ~40 kW class @ 75% load):
• 8.7 L/h at ~75% (~30 kW) → 0.29 L/kWh
• 8.9 L/h at ~75% (~30 kW) → 0.30 L/kWh
If diesel = €1.50/L (example):
• ~€0.44–€0.45/kWh (fuel)
ENERGY STORAGE:
• Cost ≈ electricity price × 1.11
• €0.20/kWh → €0.22/kWh
• €0.30/kWh → €0.33/kWh
• €0.40/kWh → €0.44/kWh
This compares fuel vs grid power only — generator operations typically widen the gap.
Where do the diesel numbers come from?
The fuel values (8.7 L/h and 8.9 L/h) reflect datasheets for a typical 50 kVA / ~40 kW generator at 75% load — not random internet averages.
Construction option: tower (monitoring and/or lighting)
If site security and night work matter, you can add a tower with monitoring and/or lighting.
Supports protection of materials, equipment and containers on site.
Evening/night work, improved visibility and safety in work zones.
FAQ: diesel generator vs construction-site energy storage
Generator or energy storage — what should I choose?
Charging time — is overnight charging enough?
Mobile or stationary storage for construction?
Can it charge all day and power tools at the same time?
greenSANE links
Full descriptions and configurations:
