The 20.7 kWp Gopez Residence system in Magalang, Pampanga was designed from the outset to allow battery storage to be added later. The first installation used Sunsynk hybrid inverters without batteries, avoiding the cost of storage before it was required while preserving a straightforward upgrade path. A 32 kWh battery bank was subsequently added without replacing the original hybrid inverter platform.

The property is net metered but operates primarily as a self-consumption system. Since the battery addition, it now performs three functions: reducing nighttime grid imports, providing backup during regular grid outages and keeping the electricity bill close to zero. During a brownout, the hybrid system transfers to battery supply in approximately 10 milliseconds, fast enough that outages are generally barely noticeable inside the residence.

The property includes multiple buildings and a relatively high residential load. A generator has also been integrated into the overall power arrangement, giving the site another source of resilience when required. Since commissioning, the Sunsynk system has operated without significant problems and has proved highly reliable.