Solar Energy & Battery Energy Storage System (BESS): The
Investing in solar power for your home already allows you to take control of your energy needs and costs; adding a Battery Energy Storage System as well can offer you better
To help homeowners tackle this tangle of information, PNNL researchers Jessica Kerby and Bethel Tarekegne published an open-access guide to rooftop solar and BESS in Renewable Energy Focus.
Without BESS, the same household could install 10 kW of rooftop solar, which would cost $28,700 and save $1,567 per year. PGE and the state of Oregon both offer incentives for rooftop solar and battery energy storage. With the utility, state, and federal incentives, the combined solar and BESS system could be paid back within 11 years.
A Battery Energy Storage System (BESS) is a technology that stores excess electricity generated by solar panels for later use. Unlike traditional solar setups that rely solely on real-time energy production, a BESS solar system captures surplus energy during peak sunlight hours and stores it in high-capacity batteries.
Pacific Northwest National Laboratory (PNNL) researchers are here to help. Homeowners must navigate a quagmire of complicated policies to determine whether the energy savings from rooftop solar panels or battery energy storage systems (BESS) are worth the high upfront cost.
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