The Sunrun Brightbox is a solar battery system.
The Sunrun Brightbox is a wall-mounted solar battery using LG Chem’s Lithium ion technology, that can be connected with existing solar energy production infrastructure. It is designed to be integrated into a wider network of energy storage devices and function as a micro grid during blackouts.
This product is available in 23 states in the USA, including Puerto Rico
This product is distributed by Sunrun, through an online quote
Primary competitors in North America include the Tesla Powerwall, SimpliPhi PHI 3.8 Battery and the Discover Battery AES 6.6 kWhr Battery
Goal 7: Affordable and clean energy
Target users include urban and rural homeowners, and recently hurricane and storm prone areas such as Puerto Rico
The Sunrun Brightbox uses a LG Chem RESU battery and is mass produced in South Korea utilizing LG Chem’s battery technology.
Users can obtain this product through direct sales from the manufacturer.
As of the end of 2018, Sunrun had installed over 5,000 Brightbox units with numbers expecting to double by the end of 2019.
Number and type of power outputs
Number and type of light points
Manufacturer-specified lumen-hours per solar day
Peak power rating of the solar panel in standardized sunlight conditions, provided by the manufacturer
Manufacturer-specified battery capacity
Manufacturer-specified battery voltage
Type of battery used
Can the user easily replace the battery if needed?
Can this system be monitored remotely?
Type of user payment structure
Does this system require mobile connectivity (either for payments or to function)?
The Sunrun Brightbox is a solar energy storage system, designed to be integrated into a larger network of storage devices to provide power to homes in periods of blackouts. The system utilizes LG Chem’s Lithium ion battery technology and is available with a 5 kW capacity; with a total energy rating of 9.8 kWh. The unit is wall mounted and can operate in most environments and temperatures with an IP55 rating. The unit has the following dimensions: 744 x 907 x 206 mm, and weighs 97 kg. The data sheet can be found here
Provided by the manufacturer
Replaceable components include the battery, inverter, solar panels, mounts and wiring connections
The battery is rated to last 6,000 cycles, and comes with a 10 year warranty. Users that purchase the Brightsave service package receive free full servicing.
The battery is designed to provide 8 – 12 hours of power for household overnight or in a blackout or power outage.
Testing performed by the Australian Renewable Energy Agency has reported that the battery under test experienced an accelerated capacity fade relative to the LG data sheets, which may be attributed to its lack of active cooling systems.
Australian Renewable Energy Agency (ARENA) is conducting tests of 18 home storage battery systems over 10 years, and releases results every 6 months. The latest test report is from June 2019.
LG Chem has some safety guidelines for installing and operating the battery system used in the Sunrun Brightbox.
The Sunrun brightbox requires solar production infrastructure to operate, and can be incorporated into existing solar system or installed with a new system.
Alnaser, W. and Alnaser, N., 2019, The Impact of the Rise of Using Solar Energy in GCC Countries, Renewable Energy and Sustainable Buildings, pp. 167-183.
Attanasio, D., 2017, Conference Proceedings Report: Transforming the U.S. Electric System: Where State and Federal Initiatives Meet, George Washington Journal of Energy and Environmental Law, p. 121.
Sandoval, C., 2018, Net Neutrality Powers Energy and Forestalls Climate Change, San Diego Journal of Climate and Energy Law.
This product has been evaluated for capacity degradation by certified third-party laboratories.
LG has released an installation manual for the Energy Storage System (ESS) used in the Sunrun Brightbox.
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