Faster Charging and Time Efficiency
- Level 2 chargers operate at 240V and provide higher power output (typically 3kW to under 20kW) compared to Level 1 chargers (1.3 kW to 2.4 kW at 120V). This enables Level 2 chargers to add 20-30 miles of range per hour versus only about 3 miles per hour for Level 1 chargers.
- This faster charging reduces the time needed to charge a vehicle from many hours (often overnight or longer) to just a few hours, improving convenience especially for daily use or multiple users.
Energy Efficiency
- Level 2 chargers tend to be more energy efficient, operating around 90% efficiency versus about 80% for Level 1 chargers. This means less energy loss during charging and potentially lower electricity costs per kWh delivered to the battery.
Cost Considerations
- While Level 2 chargers have a higher upfront cost—typically between $300 and $1,000 for residential units compared to essentially no additional cost for Level 1 chargers that use existing outlets—this initial investment can be offset by savings in electricity efficiency and the value of time saved.
- The actual electricity costs to charge a given amount of miles are roughly similar between Level 1 and Level 2 chargers because the same amount of energy is required to charge the battery. However, the faster Level 2 charging reduces wear on electrical systems and can allow for beneficial load management through smart charging software, potentially reducing demand charges or peak time costs.
- For home charging over a 7-10 year period, Level 2 charging may offer better overall value due to time saved and improved charging efficiency despite slightly higher electricity costs or installation expenses.
Additional Benefits
- Level 2 stations often come with software capabilities (smart charging, scheduling, energy monitoring, and billing when used commercially), which can optimize energy use and reduce costs over time.
- For businesses or multi-unit residences, Level 2 chargers provide a practical and attractive amenity that can increase property value or customer satisfaction.
Summary
| Aspect | Level 1 Charger | Level 2 Charger |
|---|---|---|
| Voltage and Power | 120V, 1.3-2.4 kW | 240V, 3-20 kW |
| Charging Speed | ~3 miles range/hour | 20-30 miles range/hour |
| Energy Efficiency | ~80% | ~90% |
| Upfront Cost | Minimal (uses existing outlet) | $300-$1,000+ (equipment + installation) |
| Long-term Cost Savings | Lower initial cost but slower, less efficient | Faster charging, more efficient, smarter energy use, saves time |
| Use Case | Occasional or backup charging | Daily home charging, commercial use |
In conclusion, while Level 2 chargers require a higher initial investment, their improved charging speed, better efficiency, and advanced features lead to long-term cost benefits, especially for regular EV users who value time savings and energy efficiency.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/are-there-any-long-term-cost-benefits-to-using-level-2-charging-stations-over-level-1/
