Will the majority (over 50%) of newly installed residential solar PV systems in the US in 2027 be paired with Battery Energy Storage Systems (BESS)?

Solar-Plus-Storage Dominance: Over 50% of New US Residential Installs by 2027

While solar photovoltaic (PV) systems are common, pairing them with Battery Energy Storage Systems (BESS) provides resilience against outages and allows homeowners to arbitrage time-of-use (TOU) utility rates. This prediction states that the majority (over 50%) of newly installed residential solar PV systems in the US in the calendar year 2027 will be paired with BESS.

Economics and Resilience Drive Adoption

The high 'Yes' vote reflects several powerful market drivers:

• **TOU Rate Structures:** Utilities are increasingly implementing complex TOU rates, making self-consumption via BESS financially critical.
• **Grid Instability:** Growing grid instability due to extreme weather drives demand for blackout protection.
• **Cost Decline:** The cost of lithium-ion batteries and installation continues to fall, making the ROI favorable.
• **Regulatory Changes:** The phasing out of favorable net metering policies in key states makes self-consumption the best financial option.

The 2027 deadline is aggressive but aligns with the expected maturity and price point of the BESS market, making solar-plus-storage the new standard for residential clean energy.