SuperCaps vs Tesla PW

Calculating the Calif Battery Rebate - SuperCaps vs Tesla PW

Challenge:

Residential customers using Tesla Powerwalls for Time-of-Use (TOU) arbitrage face significant limitations, including overstated usable capacity, limited cycle life, safety concerns, and warranty restrictions. Tesla's 13.2kWh Powerwall realistically offers only about 10.6kWh (80%) usable capacity due to battery degradation and daily cycling constraints. Additionally, the warranty covers fewer than five years of daily use, with considerable hidden costs and operational constraints.

Solution:

ACES offers SuperCaps, an advanced energy storage solution providing a clear advantage over Tesla Powerwalls. SuperCaps deliver a true 10-year unlimited warranty and a guaranteed 25-year life expectancy, eliminating the drawbacks associated with lithium-ion batteries, such as degradation, safety hazards, and environmental issues. When paired with common grid-tied smart inverters, SuperCaps offer comparable backup and TOU arbitrage capabilities at a lower cost.

Results:SuperCaps provide superior economic value and operational longevity compared to Tesla Powerwalls. The installed cost of three SuperCaps modules—equivalent to one Powerwall's usable capacity—is approximately $10,000, significantly less than the Powerwall's cost of around $12,000-$13,500. SuperCaps eliminate environmental risks, fire hazards, and hazardous waste concerns associated with lithium-ion technology. Residential and commercial customers can achieve reliable daily cycling, cost-effective TOU arbitrage, and enhanced environmental sustainability with SuperCaps, making them a compelling alternative to traditional lithium-ion battery systems.