When sunlight hits a solar panel, it generates direct current (DC) electricity. A solar inverter converts this into alternating current (AC), which is used to power homes, businesses and communities. Surplus electricity flows back into the public grid for grid-tied systems; for off-grid systems it is stored in a battery bank instead.

SOL-FA supports you from the first consultation through to ongoing care: personal on-site advice, tailored system design, professional installation, and maintenance plus remote monitoring after go-live. We also help with administrative matters such as registering for net metering with ANDE and paperwork for tax incentives.

Yes. An off-grid system isn't connected to the public grid at all and covers your entire electricity needs using solar panels and battery storage alone. This is especially useful for remote properties in Paraguay without a nearby ANDE connection, though it's usually more expensive due to the battery capacity required.

We use modern lithium battery storage, typically rated for around 10 to 15 years, or several thousand charge cycles, before storage capacity noticeably declines. We size the capacity individually based on your consumption and goals — whether that's covering nights, cloudy days, or full independence from the grid.

Total costs depend on system size, the brand and quality of panels and inverter, and the complexity of the installation itself. Since every roof and every electricity usage pattern is different, feel free to use our PV calculator for a first estimate or request a personalised quote.