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Net Metering vs Battery — Storing Excess Solar in the Philippines | PHILERGY German Solar

Solar Myths and Misconceptions: Net Metering vs Battery | PHILERGY German Solar

Metro Manila, Philippines When considering a solar energy system, many people assume that it must include a battery. However, in most cases, especially in grid-stable metropolitan areas, solar energy systems do not require batteries. Instead, these systems are connected to the grid and utilize a process called net metering.


What is Net Metering?

Net metering enables homes and businesses with grid-tied solar systems to sell excess solar energy back to the distribution utility (such as Meralco) and receive peso credits on their electric bill. These credits can be used to offset charges on the monthly bill, resulting in savings. In this setup, the grid effectively functions as the battery system for the property. Any surplus solar energy generated during daylight hours is fed into the grid, and the system can draw from the grid when additional power is needed, such as at night or during periods of reduced sunlight.

Comparing Solar Batteries

Compared to using batteries, where the storage and conversion processes result in natural and physical losses, only around 40-70% of the stored solar energy (equivalent to PHP 4-7 for every PHP 10 worth of energy) is available to power your appliances. Considering the costs and efficiency losses, the overall return on investment (ROI) for a solar battery system in the Philippines would typically be around 8-10 years. However, batteries require a replacement before they recover their purchasing costs through savings, resulting in failed investments.

Therefore, opting for a grid-tied net metering system is more advantageous, where excess solar electricity is sold to your electric provider rather than stored in a battery. Through this arrangement, you can receive a rebate on the generation charge, amounting up to PHP8.00. This approach minimizes upfront investment and eliminates the need for battery maintenance. With a grid-tied solar system, the ROI typically ranges between 4-5 years, making it the only smart choice to secure a successful investment.

Backup Power During Power Outages

Let's address the claim: "By using a solar battery, you can eliminate the problem of power outages."

Depending on its capacity, a solar battery can provide a certain amount of electricity to power essential appliances during a power outage. However, running high-energy devices like air conditioners or other major appliances for an extended period may not be feasible unless you invest in large-scale batteries, which can be as expensive as a car. If you genuinely desire reliable power backup during outages, it is currently more practical to have a backup generator available.

To summarize, considering the prevailing conditions in the Philippines, along with the high cost and limited efficiency of solar batteries, a grid-tied solar system with net metering is the most recommended option for consumers who want to save on electricity and invest in solar energy.

Stay prepared for the future with us: our PHILERGY German Solar Systems are designed to be compatible with batteries. As prices decrease and technology advances, we will ensure to provide you with the best battery solutions available for your needs.

Choosing a Solar Energy Company with Net Metering Services in the Philippines

PHILERGY German Solar promises not just the highest quality solar system for your home and business, but also a worry-free after-sales service and utmost support towards completing your solar net metering process in the Philippines.


PHONE: (02) 8638 8277

SMART: +63 921 373 3840

GLOBE: +63 917 329 2112

PHILERGY German Solar Philippines is your reliable, high-quality solar energy installer, solar power system, and solar panel supplier in the Philippines with German-made solar equipment combined with experienced German Solar engineering. All installations come with up to 30 years warranty for homes and businesses, and options for flexible solar financing without collateral and additional fees. We are the nation’s top solar company with headquarters, office, and showroom in Manila, Philippines with German management and German head solar engineers setting top-of-the-line solar standards.

All our solar energy systems are customized according to every client's needs via free expert solar consultation and professional onsite analysis and are installed by trained teams that are headed by at least 1 German engineer with over 20 years of solar experience.

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