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From Cost to Income
Dongcheng Garden deployed China's first residential AC V2G charger, turning EVs from costly appliances into earning storage nodes. Owners charge at valley rates near 0.33 yuan per kWh and sell back at 0.7 to 1.3 yuan at peak; Mr. Liu earns about 192.5 yuan monthly. The gifted charger with a free bidirectional meter runs via the Nengyuanlian app in managed mode, auto-charging off-peak and discharging at peak, with a prepaid plan even advancing 10,000 yuan upfront.
Private Cars as Storage Nodes
A Guangzhou community has quietly turned EVs into earning storage nodes. Vehicle-to-grid interaction has moved from parks and public lots down to residential buildings, putting paid discharging within everyday reach and aggregating idle batteries into community-scale storage that helps ease peak grid pressure.
Battery Life Reassured
Experts note V2G uses only 20% to 40% of surplus capacity through shallow cycles. Modern LFP batteries offer over 10 years of calendar life and more than 4,000 slow cycles, so compliant discharging does not harm daily driving or reduce battery health for ordinary owners.