If your solar installer closed, you can still have the system assessed and, in many cases, repaired by another qualified contractor. Here is your roadmap to taking back control. Start by identifying who owns the system, what equipment was installed, whether it is actually producing electricity, and which warranties apply to each component. A manufacturer warranty, an installer workmanship warranty, monitoring access and a service agreement are separate matters. The right next

What Is a Virtual Power Plant (VPP)? A virtual power plant can: Reduce electricity demand during peak hours Send stored energy to the grid when a program allows exports Help reduce the risk of rotating outages Make more renewable energy available after sunset Reduce the need for expensive peak-time generation How Does a Home Battery Join a VPP? Enrollment normally takes place through the battery manufacturer or an approved grid-services provider. When a qualifying grid event

A successful solar + battery retrofit starts with the existing system—not the battery. Here is what Bay Area homeowners must evaluate before writing a check. Define the Outcome Before Defining the Equipment A conventional grid-connected solar system produces electricity when sunlight is available. Without battery storage, solar energy generally cannot be stored for later use inside the home. Standard grid-tied solar systems also generally shut down during a utility outage as

Install solar panels. Add a battery. Keep the lights on. It sounds simple, but here is what it actually takes to make a home energy system work in California. Solar + Battery Is Becoming a Home Energy System Solar panels produce electricity. A battery stores electricity. But a well-designed system has to determine when electricity is produced, where it goes, when it should be stored, which loads can be backed up, and how the home should behave when the grid disappears. PG&E i

The answer isn't determined by the size of your house. It's determined by what you expect your home to do when the grid goes down. First: Understand the Difference Between kW and kWh This is probably the single most important concept in residential battery sizing. Understanding the difference can save thousands of dollars. Two homes could each need 13 kWh overnight but have completely different battery requirements. One might run a fridge, lights, Wi-Fi, and a TV. Another mig

Tesla Powerwall 3 offers more energy and continuous power per primary battery, while Enphase IQ Battery 10C may provide especially natural integration with Enphase solar and now supports eligible third-party solar retrofits. But specifications alone do not determine the best choice. The existing inverter, electrical service, backup loads, monitoring priorities and installation architecture do. This is Article 2 in Maelo Solar’s two-part guide to adding battery backup to an ex

Yes, a battery can usually be added to an existing solar system—even when the original installer is gone. The right design depends on your inverter, electrical service, backup goals, utility status and the way you want the system to operate during an outage. This guide explains the questions an experienced retrofit contractor should answer before recommending Tesla, Enphase or another battery architecture. Can You Add a Battery to Solar Panels That Are Already Installed? In m

The Goal: Finding the Real Cause If your solar panels are not producing enough power in the Bay Area, the cause may be relatively simple—such as a monitoring connection problem—or it may require professional diagnostics. Seasonal weather, shading, debris, electrical faults, inverter issues and changes in household consumption can all affect what you see. Here are nine warning signs worth investigating. 1.- Production Is Significantly Lower Than the Same Period Last Year Sola

What Does "Utility Service Incoming" Mean? "Utility Service Incoming" describes how electrical power travels from the utility company (PG&E, SCE, etc.) to your home. This matters because your existing electrical infrastructure affects: Solar installation planning Battery integration EV charger additions Main panel upgrades Future electrical capacity A professional solar evaluation should always include checking how your home is fed from the utility. Utility Service Incoming -

The Bay Area EV Reality in 2026 EV adoption in the Bay Area remains among the highest in the country. Infrastructure expansion continues—but not at the same pace as demand. Many homeowners discover: Public chargers are occupied Fast chargers are expensive Charging detours consume time Pricing varies unpredictably "Owning an EV without home charging is like owning a smartphone without a charger at home. You can do it. But it's inefficient." The Financial Case: Home Charging vs

Why This Distinction Matters in 2026 Solar battery storage and battery backup systems are often treated as the same thing. They are not. Confusing them can lead to: Lower-than-expected savings Poor NEM 3.0 financial performance No protection during outages Excessive battery capacity investment Under today’s utility rate structures and California’s net billing framework, battery integration is no longer optional for optimized solar design. It is structural. Modern battery plat

What Is a Solar PPA? A Solar Power Purchase Agreement (PPA) is a financing structure where a third-party company installs, owns, and maintains solar panels on your property at no upfront cost to you. In exchange, you agree to purchase the electricity the system generates at a predetermined rate for 20–25 years. Key Components • $0 initial investment (No loan). • Fixed electricity rate (Locked 20+ yrs). • Included maintenance (No repair costs). • Third-party ownership (Buy pow