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More than 85,000 Tesla Powerwall systems supplied over 600 megawatts during peak demand in California on October 6, as part of a collective discharge reaching 745 megawatts. The figure is 28% higher than the previous record, but it does not show the total amount of energy or the duration of supply.
Jackery is introducing the EnergyGuard Max home energy storage system, featuring an Energycore battery with a nominal capacity of 104 kilowatt-hours and a 50-kilowatt PowerVault 50 inverter. However, the product remains in the pre-production stage, and no price has been announced. The article suggests that its large capacity could serve homes with high consumption, electric vehicle charging, solar power, and grid support, while its economic viability and actual availability remain open questions.
The cost of home batteries has fallen as the use of virtual power plants has expanded. These plants aggregate thousands of distributed batteries and operate them as though they were a single power plant. Competition between Tesla and Base Power, along with rising demand for electricity, is prompting utilities to adopt this model more quickly.
Tesla Energy has announced the Powerwall Lease program, which includes two Powerwall batteries and Tesla Electric service in a single subscription, reducing the effective first-year cost to about $35 per month after a monthly credit is applied. The offer is available in select areas of Texas, but requires customers to remain enrolled in Tesla Electric and grant Tesla permission to use the batteries as part of a virtual power plant.