The Net Metering Cliff: Why Pairing Battery Energy Storage With Solar Is More Important Than Ever

Net metering has long been a key financial motivator behind commercial solar adoption. The premise is simple: if you generate more solar electricity than your site consumes, you can export the surplus to the grid and receive credits on your utility bill at the full retail rate.

But as states across the U.S. make significant changes to how grid exports are compensated, commercial solar customers need to adjust their strategies to preserve the value of their generated energy. Let’s break down how exactly solar net metering is evolving and why integrating an onsite battery energy storage system (BESS) is a smart financial move.

The Shift From Net Metering to Net Billing

The U.S. is undergoing a fundamental restructuring of how utilities compensate distributed solar generation. The traditional net metering model — full retail-rate credits for every kilowatt-hour (kWh) exported to the grid — is giving way to "net billing" structures that compensate exports at wholesale or the utility’s avoided-cost rates. While 34 states plus Washington, D.C. still maintain some form of net metering as of 2026, the trend is unmistakable: export credits are shrinking, and the economics of solar-without-storage are eroding with them.

California's NEM 3.0 policy stands as the most prominent and instructive example. Under NEM 3.0, solar export rates were slashed from an average of $0.30 per kWh to just $0.08 per kWh — a 73% reduction. For a commercial site that previously relied on export credits to help justify its solar investment, that's a significant shift in project economics.

Other states are following suit. From New York's Value of Distributed Energy Resources (VDER) tariff to evolving policies in Arizona, Indiana, and beyond, the direction is clear: Utilities are moving toward compensation frameworks that pay far less for exported solar energy than they did just a few years ago.

Why Battery Energy Storage Is Now Essential

The market has already begun to respond. In California, the battery attachment rate for new solar installations surged to 60% following the implementation of NEM 3.0. That statistic isn't a coincidence; it's a rational response to a new economic reality. When export credits lose three-quarters of their value, the only way to preserve solar value is to keep more of that energy on site. Furthermore, battery prices have meaningfully come down in recent years, bolstering the economic case.

This is precisely what a BESS enables. Rather than sending surplus solar energy to the grid at deeply discounted rates, a battery system captures excess generation and stores it for later onsite deployment, allowing the system owner to pursue a range of cost-saving and revenue-generating strategies.

• Solar shifting: Banking midday solar surplus and dispatching it during high-cost evening hours when solar generation drops and rates peak
•  Peak shaving: Reducing consumption spikes that trigger costly peak demand charges on utility bills, which can drive up monthly electricity costs dramatically
•  Energy arbitrage: Storing cheap off-peak electricity and using it during expensive peak-rate periods, turning price volatility into a cost-saving strategy
•  Demand response: Receiving compensation from the utility for reducing load during periods of high demand by dispatching battery energy to the grid.
  

In a net billing world, each of these strategies becomes a direct source of financial value that hedges against the diminishing returns of grid export credits.

The Federal Incentive Landscape Adds Urgency

Federal policy has introduced another important dimension to the storage equation. The One Big Beautiful Bill Act has narrowed the requirements for the solar Investment Tax Credit. However, battery energy storage projects retain full ITC eligibility through 2033, offering a dollar-for-dollar federal tax reduction of up to 30% of total system costs.

For organizations that already have solar arrays in place or are planning new installations, adding a BESS not only protects the value of onsite generation through self-consumption but also provides access to a substantial federal incentive that meaningfully accelerates ROI and shortens payback periods.

The Bigger Picture: Resilience and Rising Costs

Declining net metering isn't the only factor driving the case for storage. The national average commercial electricity rate rose over 5% year-over-year in the first half of 2026, with prices expected to continue outpacing inflation through the decade. For energy-intensive commercial and industrial operations, that sustained upward pressure compounds quickly.

At the same time, grid reliability continues to deteriorate. Extreme weather events, aging infrastructure, and rising electricity demand are making outages more frequent and longer-lasting. For healthcare, manufacturing, distribution, and other 24/7 operations, an unplanned outage is both an operational and financial risk. A properly configured BESS can provide backup power to keep critical systems online when the grid fails, adding a critical layer of resiliency for essential operations.

Net Metering and Battery Storage FAQs

What is the difference between net metering and net billing?

Under net metering, every kilowatt-hour your solar array exports earns a bill credit at the full retail rate. Under net billing, exports are credited at a lower rate, often tied to wholesale prices or the utility's avoided cost, while the energy you draw from the grid is still billed at retail. The wider that gap, the more valuable it becomes to store your solar energy and use it on site.

Does net billing affect solar systems that are already installed?

It depends on your state and utility. Many programs let existing customers keep their original net metering terms for a set number of years. Check when your current terms expire so you can plan storage before export credits drop.

Can I add battery storage to an existing commercial solar system?

Yes. Batteries can be added to most existing arrays, and storage can also be installed on its own. Learn more about standalone battery energy storage and how it qualifies for federal incentives.

How does a battery lower demand charges?

Demand charges are based on your highest spikes in power use. A battery discharges during those peaks so less power comes from the grid, which lowers the peak your utility bills you for. See how this works for food and beverage companies.

What size battery does my site need?

Sizing depends on your load profile, your utility rate structure and whether you need backup power. PowerFlex models your interval data to size a system around savings and resilience goals. Explore our commercial battery energy storage solutions.

PowerFlex Is Your Solar-Plus-Storage Partner

The economics of commercial solar are changing, but battery energy storage reframes the equation. By maximizing solar self-consumption, enabling cost-savings and revenue strategies, and delivering backup resilience, a BESS ensures that every kilowatt-hour your solar array generates works harder for your bottom line.

Ready to future-proof your solar investment? Contact a PowerFlex expert to learn how battery energy storage can help your organization capture the full value of its onsite energy today and for years to come.