From the cost-benefit analysis perspective, the Cost of Electricity per kilowatt-hour (LCOE) of lanpwr battery is $0.03 /kWh for a life of 5,000 cycles, which is much lower compared to that of lead-acid batteries at $0.25 /kWh. Considering an average energy consumption of 10 kWh per day for micro-residences, approximately $8,035 worth of electricity cost can be saved in a 10-year cycle. For instance, quantified data from a 20-square-meter occupant of a micro-apartment in Colorado show that by using a 5 kWh lanpwr battery system (unit price: $4,500) as a lead-acid battery replacement (total price: $3,200, replaced every two years), the five-year total holding cost decreased by 54% (from $8,000 to $3,675). The ROI was 122%.
In terms of energy density and space utilization, lanpwr battery reduces the energy storage system’s capacity by 60% to 200 Wh/kg (50 Wh/kg for lead-acid battery). Take the 1.5㎡battery compartment of a general micro-residence as an example. The lanpwr battery can hold a capacity of 15 kWh (weighing 75 kg), while the lead-acid battery can only be deployed with 5 kWh (weighing 300 kg). The 2023 report of the U.S. Department of Energy indicates that its modular architecture enables horizontal expansion up to 40 kWh, is suitable for solar inverters (with efficiency of 98%) and off-grid load demands, and the self-sufficiency rate for daily operation has been increased from 65% of the lead-acid solution to 92%.
In terms of charging and discharging capacity, lanpwr battery can charge and discharge at 1C rate (with system peak power of 10 kW for 10 kWh) and get charged from 0-100% in 1 hour with an efficiency of 95% (the lead-acid battery takes 8 hours with an efficiency of 80%). For example, an off-grid household user in Oregon had a 400W solar panel installed and used lanpwr battery to give a daily average power supply of 20 kWh of load (electrical appliances and heating included). Winter charging was merely 18% longer than in summer (lead-acid battery efficiency dropped by 70% due to low temperature). Its smart BMS (Battery Management System) can also increase the charge and discharge cycle life by 15%, and regulate the capacity attenuation rate at 0.02% per cycle (0.1% for lead-acid batteries).
As for compliance and safety, lanpwr battery has been certified by UL 1973 and IP67, with a probability of less than 0.001% of thermal runaway, and its zero-emission feature (no acid mist or hydrogen emission) complies with the safety standards of confined Spaces in micro-residences. After the 2022 California building code update, the use of lead-acid batteries was banned for indoor applications due to the risk of fire (accident rate 0.08%), whereas lanpwr battery was preferred to be used by 30% of newly built micro-homes. For instance, after a prefabricated house factory switched to lanpwr battery, the insurance cost decreased by 40% (saving $240 average per year), and the installation and commissioning time decreased from 8 hours to 2 hours.
Market statistics confirm that in the North American micro-residential energy storage market in 2023, the penetration rate of lanpwr battery increased from 8% in 2019 to 39%. According to the Tiny Home Industry Association data, its user satisfaction was 94% (62% for lead-acid batteries) mainly due to the 10-year warranty policy and less than 15 US dollars average yearly maintenance cost (200 US dollars for lead-acid batteries). For instance, after the installation of lanpwr battery in a community in the hurricane-prone area of Florida, power supply stability during calamities increased by 83%, and average annual loss per household due to power failure was reduced by $1,200.