To calculate the annual savings by using a Level 2 charger instead of a Level 1 charger, consider the following factors:
- Charging Speed and Efficiency:
- Level 1 chargers typically provide 3-5 miles of range per hour, meaning a full charge might take 24 hours for smaller batteries and longer for larger ones.
- Level 2 chargers offer 12-60 miles of range per hour, significantly reducing charging time.
- Power Consumption and Cost:
- While Level 1 chargers use standard 120V outlets, Level 2 chargers require a 240V outlet. Although Level 2 chargers consume more power, they charge faster, which can be more efficient for daily driving needs. For example, if you charge to 70% daily, you might save money by not charging as frequently as with Level 1.
However, the actual cost savings come from how you use the charger rather than the device itself. If you use a Level 2 charger that allows you to top off your battery more efficiently for daily use, you could save a little on your electricity bill by not having to charge as long or as often.
Let’s assume a common scenario where you drive about 36 miles per day and have a battery capacity of about 60 kWh.
- Level 1 Charger: If you charge every night, you might use about 12 kWh per day (assuming you can only get about 36 miles per overnight charge from a Level 1).
- Level 2 Charger: With a faster charger, you might use less power per day due to more efficient charging (perhaps 9 kWh for the same 36 miles if you top off during the day).
If electricity costs $0.15 per kWh and you save about 3 kWh per day by using a Level 2 charger more efficiently, the annual savings would be:
Daily Savings = 3 kWh/day × $0.15/kWh = $0.45/day
Annual Savings = $0.45 × 365 ≈ $164.25/year
Thus, the potential annual savings by using a Level 2 charger, assuming more efficient use, could be approximately $164.25. However, this figure might vary based on your specific usage patterns, electricity rates, and charging efficiency.
Additionally, while Level 2 chargers may cost more upfront for hardware and installation, they offer the convenience of faster charging, which might offset some costs through reduced electricity usage over time.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/how-much-can-i-save-annually-by-using-a-level-2-charger-instead-of-a-level-1-charger/
