For many companies, switching from diesel to electric forklifts is no longer a question of the future, but a clear business decision. Rising diesel prices, stricter emissions regulations, ESG reporting requirements, and attractive subsidy programs are currently changing the demands placed on modern forklift fleets.
This guide provides practical guidance on how companies can implement the change in a technically, economically and organizationally sound manner – with real cost examples, concrete planning formulas, security requirements and a clear implementation roadmap.
Why switching to electric forklifts is worthwhile now
Electric forklifts produce no exhaust fumes during operation, generate significantly less noise, and require considerably less maintenance than diesel forklifts. At the same time, energy costs can be calculated with long-term stability, making operating costs more predictable.
Added to this is the regulatory pressure: emission limits, CO₂ pricing, sustainability reports, and environmental regulations directly influence investment decisions. Those who adapt early gain economic and legal certainty.
Economic efficiency: Concrete TCO calculation instead of rough estimates
Specific cost examples for TCO calculation
Example 1: A forklift operating on a single shift (8 hours/day, 250 days/year)
- Purchase of diesel forklift: €25,000
- Purchase of electric forklift (lithium): €27,000
- Diesel operating costs: €1,500/year (fuel) + €1,200/year (maintenance) = €2,700/year
- Electrical operating costs: €400/year (electricity) + €300/year (maintenance) = €700/year
- 10-year TCO diesel: 25,000 + (2,700 × 10) = 52,000 €
- 10-year TCO electric: 27,000 + (700 × 10) + 2,000 € (charging infrastructure) = 36,000 €
- Savings: €16,000 (31%)
- Payback period: approx. 2-3 years
Example 2: A forklift in multi-shift operation (16h/day, 250 days/year, with interchangeable battery)
- Purchase of diesel vehicle: €25,000
- Purchase of electric vehicle + spare battery: €27,000 + €8,000 = €35,000
- Diesel operating costs: €5,400/year
- Electrical operating costs: €1,000/year
- 10-year TCO diesel: 25,000 + 54,000 = 79,000 €
- 10-year TCO electric: 35,000 + 10,000 + 2,000 = 47,000 €
- Savings: €32,000 (40%)
- Amortization: approx. 3-4 years
Operating cost details:
- Electricity costs: approx. €0.30 per operating hour
- Diesel costs: approx. €1.50 – €2.50 per operating hour
- Diesel maintenance: approx. €750 per year
- Electrical maintenance: approx. €150 per year
Battery technologies compared
| criterion | Lead acid | Lithium-ion | Hydrogen/fuel cell |
|---|---|---|---|
| Purchase per kWh | 150–200 € | €400–600 | €3,000–€5,000 (system) |
| Typical costs for a 2.5t forklift | €2,500–4,000 | €6,000–9,000 | €15,000–20,000 |
| Charging time 0–100% | 8–12 h | 1–4 h | 3–5 min |
| Fast charging | No | Yes (30–60 min at 80%) | n/a |
| life | 3–5 years | 8–10 years | 10+ years |
| Energy efficiency | 65–70% | 95%+ | 90%+ |
| maintenance | High | Minimal | Small amount |
| Recommended use | Only for low occupancy | Standard for modern businesses | Special solution for high-load operation |
Conclusion: For new purchases, a modern lithium-based forklift battery is currently the most economically sensible solution.
Planning charging infrastructure: Concrete formulas & real costs
How many charging points do you need?
- Single shift: 1 loading point per forklift
- Two-shift operation: 0.5–0.7 loading points per forklift
- Multi-layer: Replaceable batteries or fast charging required
Example: 10 forklifts operating in two shifts → 10 × 0.6 = 6 loading points
Calculate electricity consumption:
- Average consumption: 2–3 kWh per operating hour
- 8h operation: 16–24 kWh per day
- Charging power per point: 7 kW
- 6 charging points simultaneously: 6 × 7 kW = 42 kW peak load
Load management: Intelligent load management distributes charging power over time and prevents costly grid overloads. Cost: approximately €2,000–€5,000.
A selection of suitable chargers for all common battery systems forms the technical basis of the infrastructure.
Safety checklist for the loading area:
- Minimum distance to flammable materials: 2.50 m
- Aisle width at least 0.60 m
- Non-slip floor
- Fire extinguisher in the immediate vicinity
- Cable secured against tensile stress
- Warning sign “Danger of electric shock”
Step-by-step implementation plan
Step 1: Fleet analysis (weeks 1–4)
The first step is always a complete inventory of the existing fleet. Without accurate baseline data, any subsequent cost, range, or infrastructure planning is unreliable.
The following must be recorded:
- How many forklifts are currently in use?
- What are the load capacities (e.g., 1.6 t / 2.5 t / 3.0 t)?
- What are the daily deployment times?
- How many shifts per day?
- On how many days per year is the trip undertaken?
- What track lengths, indoor/outdoor, ramps?
Calculate occupancy profile:
- Hours per shift × Shifts per day × Days per year
- Example: 8 h × 2 shifts × 250 days = 4,000 operating hours/year
Find out current diesel costs:
- Diesel consumption per hour
- Annual maintenance costs
- Days lost due to repairs
Fleet analysis checklist:
- Number of vehicles
- Load capacity classes
- Area of application (hall, outdoor, ramp)
- Layer model
- Annual operating hours
- Current fuel and maintenance costs
Step 2: Cost analysis & funding (weeks 2–6)
The fleet analysis is followed by an economic evaluation based on the Total Cost of Ownership (TCO). The decisive factor is the 10-year perspective, not the purchase price alone.
TCO components:
- Acquisition costs
- Energy costs
- Maintenance and repair costs
- Loss costs
- Residual value / Disposal
Check funding programs:
- BAFA Module 4: 10–15% (SMEs)
- BAFA Module 6: up to 33% (very small businesses)
- Regional EU funding per federal state
Compare financing models:
- Purchase: full investment, maximum depreciation
- Leasing: predictable monthly payments, preservation of liquidity
- Rent: flexible for pilot phases
ROI logic:
- Low occupancy: Amortization 3–5 years
- Average occupancy rate: 2–4 years
- High occupancy rate: 1.5–3 years
Example of the impact of support:
- Electric forklift purchase price: €27,000
- BAFA 15%: €4,050 subsidy
- Effective purchase price: €22,950
Step 3: Charging infrastructure planning (weeks 4–10)
Charging infrastructure is the backbone of the electric fleet. Mistakes in this phase will later lead to production outages or costly grid expansions.
Calculate charging points:
- Single shift: 1 loading point per forklift
- Two-shift operation: 0.5–0.7 loading points per forklift
- Multi-layer: Replaceable batteries or fast charging required
Loading times:
- Lead acid: 8–12 hours
- Lithium: 1–4 hours
- Fast charging: 30–60 minutes to 80%
Calculate network connection:
- Consumption: Ø 2.5 kWh per hour
- 8 hours of operation: 20 kWh per day
- Charging power per point: 7 kW
- 6 charging points simultaneously: 42 kW peak load
Load management:
- Distributes charging processes over time
- Prevents network overload
- Costs: approx. €2,000–5,000
- Saves 10–20% on network charges
Charging infrastructure costs (guidelines):
- AC charging station 11 kW: €1,200-1,800
- DC fast charger 22 kW: €3,000–€5,000
- Installation costs: €500–2,000 per point
Safety requirements:
- 0.60 m free aisles
- 2.50 m distance to flammable materials
- Fire protection available
- Loading area marked
Step 4: Plan staff training (weeks 5–8)
The safe operation of electric forklifts is legally required. Every driver must be trained in accordance with DGUV 308-001.
Training content:
- Legal basis
- Construction & Function of Electric Forklifts
- Battery technology
- Charging method
- Accident prevention
Duration: 1–2 days (theory + practice)
Cost: approx. €250-400 per person
Additional training in lithium:
- Handling fast charging
- Understanding error messages
- Fire protection measures
Step 5: Conduct pilot phase (weeks 8–16)
The pilot phase minimizes investment risks. Testing is deliberately conducted with only 1-2 devices.
Measured variables:
- Range per shift
- Loading times
- Failure rate
- Driver acceptance
Documentation: daily logbook over 8 weeks
Go/No-Go criteria:
- Sufficient range?
- Are the loading times practical?
- Acceptance is positive?
- No safety-related incidents?
Step 6: Rollout plan (weeks 12–24)
Following a successful pilot phase, the transition will be gradual.
Example phase plan:
- Months 1–3: 25% of the fleet
- Months 4–6: another 25%
- Months 7–9: another 25%
- Months 10–12: complete transition
Old devices:
- Sale on the secondhand market
- trade-in
- Disposal
Mixed operation: Diesel & electric possible in parallel, requires dual maintenance logic.
Step 7: Monitoring & Optimization (ongoing)
After the transition, continuous monitoring is crucial for economic success.
KPIs:
- Operating costs per hour
- Failure rate
- Battery Health
- CO₂ savings
Monthly reports:
- Energy consumption
- Maintenance costs
- Disturbances
Maintenance plan:
- Battery health checks
- UVV inspections
- Charger inspections
Safety and legal requirements during ongoing operations
Daily check before starting work (driver checklist)
DGUV Regulation 68 stipulates: Every driver must carry out a visual and functional inspection before each shift.
Checklist (duration approx. 3–5 minutes):
- General condition: No visible damage, cracks or deformations
- Battery connections: Tight, clean, no corrosion
- Battery charge indicator: Plausible values visible
- Steering: Smooth, without delay
- Brakes: Pedal pressure normal, no bottoming out.
- Tires/Tires: No cuts, sufficient air pressure
- Lighting: Front light, rear light, turn signals are functional
- Horn: Function given
- Lifting mechanism/fork: Smooth running, no unusual noises
- Safety features: Roll bar, warning signs present
Special features of lithium-ion batteries:
- Battery Management System (BMS) display without warning message
- No heat build-up at the battery
- No unusual odors (chemical odor = stop operation immediately)
Annual UVV inspection (expert / inspector)
DGUV Regulation 68 requires a documented inspection by a qualified expert at least once a year.
| Area | Checkpoints | Practical tip |
|---|---|---|
| Electrical system / Battery | • Measure battery voltage • Check charging ports • Insulation measurement • BMS functional test |
For lithium batteries: Check for a software update |
| mechanics | • Check lifting chains • Measure fork wear • Control mast play |
Document wear and tear early |
| Security | • Brake system • Emergency stop function • Lighting • Warning systems |
Store checklist digitally |
| Tires | • Tread depth • Damage • Air pressure |
Document with calipers |
Cost of UVV inspection: approx. €150–300 per forklift per year
Documentation: Entry in the inspection log is legally required.
Training according to DGUV 308-001: Content & Procedure
Duration: 2 days (approx. 14–16 teaching units)
| Day 1 – Theory | Day 2 – Practical Training |
|---|---|
| • Legal basis (DGUV 68, BetrSichV) • Electric forklift assembly • Battery systems • Charging methods • Accident prevention |
• Driving exercises • Stacking at a height • Load bearing • Emergency braking • Final exam |
Additional training for lithium-ion batteries:
- Fast charging and intermediate charging
- Interpreting error codes
- Fire protection measures
- Emergency procedures
Cost per person: approx. €250-400
Refresher: Recommended every 3 years or when changing devices.
Common mistakes in fleet electrification – and how to avoid them
Mistake 1: Applying for funding too late
Problem: Purchase is made before application – subsidy is forfeited.
Solution: Always submit the BAFA application before signing the contract.
Mistake 2: Underestimating charging infrastructure
Problem: Devices are there, charging points are missing.
Solution: Install infrastructure 2-3 months before delivery.
Mistake 3: Not taking training seriously
Problem: Drivers are driving electric forklifts like diesel forklifts – range is decreasing, errors are increasing.
Solution: Mandatory training + lithium add-on modules.
Mistake 4: Skipping the pilot phase
Problem: Buying an entire fleet at once – a costly mistake.
Solution: Always test 1-2 devices.
Mistake 5: Not factoring in winter operation
Problem: 20–30% range loss in winter.
Solution: Battery heating, backup equipment, buffer times.
Mistake 6: Setting electricity prices incorrectly
Problem: Planning with €0.30/kWh – actual €0.45/kWh.
Solution: Calculate local tariffs realistically.
Mistake 7: Neglecting DGUV documentation
Problem: No inspection reports – insurance company will not pay in case of damage.
Solution: Keep inspection logs, training records, and accident prevention regulations (UVV) protocols clean and organized.
Practical resources and contact points
Funding programs & authorities
| program | authority | Funding rate | Requirements |
|---|---|---|---|
| BAFA Module 4 | BAFA | 10–15% | SMEs, replacement procurement |
| BAFA Module 6 | BAFA | up to 33% | micro-enterprises |
| EU CO₂ subsidies | Regionally different | up to 50% | Project proposal |
Training provider (DGUV 308-001)
- Linde Academy
- STILL Academy
- TÜV / DEKRA
- Regional employers' liability insurance associations
Network connectivity & infrastructure
- Local network operator
- Certified electrical company
- Charging Infrastructure Planner (BEM)
Insurance & Liability
- Check business liability insurance
- Comprehensive insurance for new devices
- DGUV membership
Sources and further resources
- DGUV Regulation 68 – Industrial Trucks
- DGUV Principle 308-001 – Training of forklift operators
- Industrial Safety Ordinance (BetrSichV)
- Machinery Directive 2006/42/EC
- ISO 3691-4 – Battery safety
- DIN EN 62619 – Lithium battery standards
- BAFA – Energy Efficiency & Electromobility
- Federal Environment Agency – CO₂ accounting
