Living Off-Grid with an Electric Car: Possibilities and Challenges

The quest for sustainable living has seen many turn to off-grid lifestyles, and among the growing list of considerations is the feasibility of owning and driving an electric car. This article explores the possibilities and challenges of maintaining both a vehicle and an off-grid lifestyle, focusing on the advancements in electric car charging technology and the impact of climate on such practices.

Advancements in Electric Car Charging Technology

One of the primary barriers to living fully off-grid with an electric car is the ability to charge the vehicle. However, the landscape has changed significantly. High amperage DC chargers, known for their efficiency, have become more widespread and cost-effective. In 2018, there were around 1,000 of these chargers, and by 2024, this number had soared to over 15,000. These chargers can charge a car to support a 150-mile range in just 15 minutes if the battery is low.

For those living in more urban or commercial settings, like my nephew’s situation with a Rivian truck, remote charging is a viable solution. He has driven over 40,000 miles, never needing to plug in at home, instead relying on work or DC fast chargers. This is efficient for him, as his tenancy does not provide 240-volt receptacles, and charging a 135kW battery at 1.2KW per hour isn't practical.

For off-grid homeowners, the possibility to charge their electric cars is more within reach. Utilizing a 240-volt charger, they can complete charging in a couple of hours. Additionally, adding 3kW of extra solar panels can generate more power than the car uses on average, making the charging process much more sustainable. Today, 3kW of solar panels can be purchased for about $1,000, a significant drop from previous years.

Comparing Vehicle Costs and Operational Feasibility

While it may seem economical to live off-grid and have an electric car, the reality can vary widely depending on the environment. For instance, in a northern climate like Northern Ontario, winter presents a significant challenge. Overwinter, the battery's performance can be halved when temperatures drop to -35 to -40 degrees Celsius. At these temperatures, solar panels might only generate a maximum of 2-3kWh per day, making it impractical except with the support of a generator. It is estimated that charging might consume 100kW over a week just to reach the nearest town and return.

Contrast this with the summer months, where the conditions are more favorable. With an average 5kW solar system, producing 25kWh per day, an additional 5kW system could easily power an electric vehicle. Given that a 1000-mile monthly drive consumes approximately 250kWh, a 5kW system would be ample for such a weekly requirement.

Solar Panel Costs and Long-Term Savings

The cost of solar panels has significantly decreased over the years, making it possible to invest in a substantial amount of renewable energy for off-grid living. In 1990, a pair of 45-watt solar panels cost $750. By 1998, a pair of 120-watt panels could be purchased for $429 each. Today, you can buy as many 250-watt panels as needed for $85 each (used), totaling around $1,700 for 5kW of used solar panels. This reduction in cost has made it much more feasible for individuals to invest in solar power for both their home and their electric vehicles.

Conclusion: Navigating Off-Grid and Electric Cars

While the challenges of living off-grid and owning an electric car are significant, the advancements in technology and the decreasing cost of renewable energy solutions make it possible for some. However, geographical constraints, especially in cold and remote areas, can make it a more complex endeavor. It is ultimately up to the individual to weigh the cost, time, and environmental benefits against their personal circumstances.

For those in more temperate regions or urban settings with access to charging stations, an off-grid lifestyle combined with an electric car can be a practical and sustainable choice. Innovations in charging technology, ongoing cost reductions in solar panels, and the increasing popularity of electric vehicles make it a viable option for a growing number of people looking to embrace eco-friendly living.