California Solar Changed: Why Your Home May Need a Battery in 2026

How California’s New Solar Rules Changed Home Energy Savings

California’s solar market changed significantly with the introduction of NEM 3.0 (Net Billing Tariff) in April 2023.

Under the previous NEM 2.0 program, homeowners could receive credits close to the retail electricity rate when they sent extra solar energy back to the grid.

This made solar‑only systems highly valuable because homeowners could offset future electricity use with solar credits.

However, NEM 3.0 changed how excess solar energy is compensated.

Today, you get less credit for sending solar power to the grid than you pay for electricity.

In simple terms:

Selling extra solar energy is worth less. Using your own solar energy is worth more.

The Problem With Solar Under NEM 3.0

Solar panels produce the most energy during the day, while many homes use the most electricity in the evening. This timing gap means you may send excess solar to the grid for a lower credit during the day, then buy electricity back at a higher rate when you need it most.

Under NEM 3.0, the biggest opportunity is no longer producing more solar energy — it is storing and using more of the energy you already produce.

Why Battery Storage Matters Under NEM 3.0

A home battery helps solve the solar timing problem.

Instead of sending excess solar energy back to the grid at a lower value, a battery stores that energy for later use.

Without a battery, excess solar power goes to the grid during the day, and you may buy electricity from the utility at night. With a battery, you can store that solar power during the day and use it in the evening.

The goal is simple:

Use more of your own solar power and reduce dependence on expensive grid electricity.

Solar + Battery: A Better Way to Maximize Savings

Under NEM 3.0, the value difference can be significant:

Instead of selling solar power cheaply and buying electricity back at a higher price, homeowners can store their solar energy and use it when they need it most.

A battery system can help:

1. Increase solar self‑consumption
2. Reduce peak‑hour electricity costs
3. Protect against rising utility rates
4. Provide backup power during outages

More Than Savings: Energy Backup When You Need It

California homeowners also face increasing concerns about power reliability, including wildfire‑related outages and grid interruptions.

With a properly sized battery system, homeowners can keep essential loads like refrigerators, lights, internet, security systems, and other important appliances running during an outage.

Solar panels generate power. A battery helps keep that power available when you need it.

The Future of California Solar Is Solar + Storage

NEM 3.0 changed the way homeowners think about solar.

The question is no longer:

“How much solar energy can my home produce?”

The better question is:

“How much of my solar energy can my home actually use?”

With solar + battery storage, homeowners can make better use of their solar investment, reduce electricity costs, and gain more control over their energy future.