One of the costs (and hurdles) when evaluating grid type batteries is the replacement cost every few years. The claim with the Zap Works Batteries is they last 100 years with 2% degradation. If this is the case then this could be a serious contender.
The prices are reasonable at this stage if you take in life expectancy, and I am sure in mass production would come down and be very competitive.
According to the website
Compare this with more expensive deep-charge lead acid batteries. Discharging to 50% of stated capacity end the life of the battery after 500 charge/discharge cycles. Best case, a high-quality deep-charge lead acid battery lasts 5-7 years.
Over eight years ago, they started extensive testing of original Edison battery components. They learned from years of investigating and experimentation to produce batteries of their own design. Different than Edison’s, they can be discharged and charged endlessly with no degradation over time.
While the lead acid battery permanently loses capacity with successive use, the Zapp Star Battery never loses capacity. If the user completely drains the lead acid battery, capacity is severely diminished or often destroyed.After complete discharge, the Zapp Star Battery can be recharged to 100% capacity.
- Unlike other batteries, entire quoted capacity is usable. For example, deep-charge lead acid batteries should be discharged between 30% and 70% of rated capacity–and never beyond 80%.
- Cannot be overcharged. It does not overheat, provided electrolyte level is maintained.
- A complete residential battery system stores 36 kW storage , enough for a typical 3-bedroom 2 bath household.
- Performs well when charged/discharged many times a day.
- Potash electrolyte is plentiful and cheap. No hazmat disposal requirements when diluted
Each curve above show the total amount of power drawn at a constant amount of power (amps). For all batteries, the higher the power (amps) drawn, the sooner the battery is discharged–to 9 volts, in the case above. Also true for all batteries, the higher higher-demand (higher power) test will always product LESS total energy drawn (in Watt-hours).
Zapp Works, Inc. – 115 South Atlantic St. – Dillon, MT 59725