Need to know the difference between Sonnen Battery Vs Tesla Powerwall 2? Deciding between Sonnen and Tesla as battery brands in Australia poses a challenge. While Tesla, an incredible company, offers the premium Powerwall 2, its cost and relative inflexibility limit its application.
When contemplating an AC-coupled system, a comparison between Tesla Powerwall 2 and Sonnen batteries becomes crucial to identify the optimal solution for your property and budget
Safety Considerations
Prioritizing safety when choosing batteries is imperative. Reassurance about the safety of any equipment utilized on your property is paramount.
Tesla Powerwall 2 employs NMC chemistry (Lithium, Magnesium, and Cobalt), with Cobalt introducing safety concerns. It escalates the risk of electricity shortages and elevates the potential for fire hazards.
In contrast, Sonnen relies on the most reliable and sustainable battery technology, entirely free from Cobalt. Comprising Lithium Iron Phosphate batteries (LiFePO4), Sonnen ensures prolonged safety and utilization.
Storage Size
The price of a battery is directly linked to its size. Therefore, it’s crucial to focus on the battery size since no one wants to pay for something they won’t fully utilize. For instance, if you require 8kWh of storage, Tesla could cost you approximately $12,000, while Sonnen could be as affordable as $7,000.
Tesla Powerwall 2 lacks size flexibility, unlike Sonnen, which offers a range of battery sizes. Tesla Powerwall 2 is available in a single size of 13.5 kWh. Conversely, Sonnen offers options to upgrade to sizes such as 6, 7.5, 8, 10, 12, 12.5, 14, and 15kWh.
How Long will it Last?
Tesla also provides a 10-year warranty, similar to most batteries on the market. However, after a decade, it doesn’t ensure charge retention of up to 70% of its capacity. The warranty also encompasses 37MWh of output, indicating 3000 cycles, sufficient for a daily cycle over about 7 years. In contrast, it’s astonishing that Sonnen batteries boast 10,000 cycles over 10 years, maintaining 80% capacity.
In summary, Tesla Powerwall 2 has 7,300 warranty cycles, fewer than Sonnen. Consequently, Sonnen batteries boast a longer warranty life expectancy.
Additional Costs and Integration
For Tesla Powerwall 2, an AC-coupled battery, a separate solar inverter is necessary.
On the other hand, Sonnen offers a hybrid AC-coupled battery.
Regarding Tesla Powerwall 2, connecting to a solar system requires panels, a Tesla Battery, and an inverter. In contrast, Sonnen offers an all-in-one solution. Sonnen’s battery components are integrated into single high-quality cases.
Benefits and Savings
Tesla Powerwall 2 provides:
- $0 Supply charges for 12 months
- A flat rate of 31c for grid purchase
- 10c feed-in tariff
Sonnen Battery provides:
- $0 Supply charges for 12 months
- 38c after going over the usage allowance.
- 7c in tariff after the export threshold.
Final Verdict
We hope this article has been valuable knowledge in the world of Solar Batteries. Sonnen battery vs Tesla is a hard battle to fight, but we think they both have come out pretty even. Both have a significant presence in Australia.
Contact Solar Air Energy to get your batteries installed today by Brisbane’s top Solar company. We will be happy to assist you with the right quotations.
