Services
Operation & Maintenance
Service that grows with you.
A storage unit only earns money when it's in use.
Every hour of downtime comes at a cost: lost savings, lost revenue from baseload power and electricity trading. That’s why we identify anomalies before they become a problem—and respond quickly if something does go wrong.
The Service
What Our Services Include
01
24/7 Remote Monitoring
We monitor your storage system’s operational data around the clock, down to the cell level. The system automatically reports safety-critical conditions—often before they develop into a malfunction.
02
Preventive Maintenance
Scheduled inspections and standard-compliant tests instead of reacting after damage occurs. This ensures that your system remains reliable and compliant with standards.
03
Remote and On-Site Troubleshooting
We first troubleshoot issues remotely. If an on-site visit is necessary, a service technician will come directly to your facility.
04
Software Updates & Regulatory Compliance
We are constantly refining our energy management and control systems and adapting your storage system to meet new regulatory requirements.
Your Service Team
Service Engineers Who Know Your System
Our in-house service team manages your storage system. We don’t outsource this work to a rotating cast of external service providers—instead, you’ll have dedicated contacts who are familiar with your system.
Hotline
A direct line to your own team.
Remote
Remote updates and troubleshooting.
On site
Service technicians working directly on your system.
One service, two models
Model 1 · Commercial Storage Tank
Three service packages: Basic, Plus, and Premium
Commercial storage
Basic
24/7 System Monitoring (Venma App)
✓
Service Hotline (in-house team)
✓
Remote Service (Updates & Troubleshooting)
✓
Remote response time, weekdays
< 1 business day
Remote response time, year-round
–
On-site service technician
after a vote
Remote Service Availability
on weekdays
Customer Service Hotline
Mon–Fri 8 a.m.–5 p.m.
Commercial storage
Plus
24/7 System Monitoring (Venma App)
✓
Service Hotline (in-house team)
✓
Remote Service (Updates & Troubleshooting)
✓
Remote response time, weekdays
< 6 hours
Remote response time, year-round
< 18 hours
On-site service technician
after a vote
Remote Service Availability
365 days
Customer Service Hotline
Daily from 8 a.m. to 5 p.m.
Commercial storage
Premium
24/7 System Monitoring (Venma App)
✓
Service Hotline (in-house team)
✓
Remote Service (Updates & Troubleshooting)
✓
Remote response time, weekdays
< 4 hours
Remote response time, year-round
< 12 hours
On-site service technician
< 72 hours
Remote Service Availability
365 days
Customer Service Hotline
Daily from 7 a.m. to 9 p.m.
Optional add-on
Preventive maintenance
Planned inspection instead of reactive response.
Comprehensive Technical Inspection
Regular inspection of performance and safety.
DGUV V3 Recertification
Periodic inspection of the electrical system.
Maintenance Documentation
Complete, for documentation, warranty, and audits.
Model 2 · Large-Scale Battery Storage
Technical Operations Management Throughout the Entire Term
Large-scale battery storage
Technical Operations Management
Type of Contract
Long-Term Service Agreement (LTSA)
Monitoring
24/7, with error diagnosis
Remote response time
agreed upon on a project-by-project basis
On-site deployment
agreed upon on a project-by-project basis
Maintenance & Inspections
Preventive and Corrective Maintenance
Reporting
Performance Reporting for Property Owners and Investors
Energy Management
Monitored and controlled by the Voltfang EMS
Monitoring, control, and optimization are handled by our energy management system. The EMS app gives you a complete overview of all energy flows—anytime, anywhere.
Frequently Asked Questions About Operation and Maintenance
Maintenance includes 24/7 monitoring down to the cell level, remote service for updates and troubleshooting, on-site service, and—upon request—preventive maintenance, a comprehensive technical inspection, and a DGUV V3 inspection with complete documentation. This ensures that the storage system remains safe and cost-effective.
All packages include 24/7 monitoring, a service hotline, and remote support. The Plus and Premium packages reduce response times and extend availability to 365 days a year; the Premium package also guarantees an on-site service technician within 72 hours. These packages apply to commercial storage systems.
That depends on the service package: With the Remote package, we respond within one business day or less than four hours, depending on the package; with the Premium package, a technician will be on site within 72 hours. The monitoring system detects many anomalies before they turn into malfunctions.
Yes. Electrical systems in businesses must be inspected on a recurring basis, for example, in accordance with DGUV Regulation 3; the inspection intervals are determined by the risk assessment. Voltfang offers DGUV Regulation 3 follow-up inspections and a comprehensive technical inspection as an additional service—including documentation.
Under a technical management contract, a service provider assumes long-term responsibility for monitoring, maintenance, troubleshooting, and reporting for a large-scale storage system. Voltfang offers this service for the large-scale battery storage systems we have built—meaning that both construction and operation are handled by a single partner.
We continuously adapt your storage system and energy management to regulatory changes and continue to develop new use cases. This ensures that your system remains future-proof without requiring any adjustments on your part.
We will work with you to determine the scope and duration based on your system and specific use case. “Basic” is the standard option; “Plus” and “Premium” are optional add-ons.