SOLAR EXPLAINED

kW, kWh, kVA and kWp: What the Numbers Actually Mean

Understand the difference between power, energy, apparent power and rated solar capacity. See how these measurements apply to appliances, inverters, batteries and solar panels. Learn why an inverter’s kVA rating, a battery’s kWh capacity and a solar array’s kWp rating describe different capabilities.

Understanding Inverter Voltage: 12V, 24V, 48V and Beyond

Learn the difference between battery input voltage, solar input voltage and AC output voltage. Understand how battery-system voltage affects current and cable requirements, and why a 48V inverter can have a much higher PV input voltage. Explore how voltage selection fits into the design of small backup systems, homes and larger installations.

Grid-Forming vs Grid-Following Inverters: Who Establishes the Power Supply?

Discover how grid-forming equipment establishes voltage and frequency, while grid-following equipment responds to an existing electrical supply. Understand why this distinction matters during outages and in off-grid systems. Explore how batteries, solar inverters and generators can work together within a properly controlled local power network.

AC Coupling: How Solar and Battery Inverters Work Together

Learn how a solar inverter and a separate battery inverter can operate through a shared AC network. Explore applications such as adding storage to existing solar installations and supporting substantial daytime loads. Understand why compatibility, connection position, surplus-energy control and recovery after battery depletion must be considered.

Battery Capacity vs Battery Power: Understanding kWh and C-Rating

A battery may store enough energy for a task without being able to deliver the required power. Understand nominal and usable capacity, charge and discharge rates, continuous limits and short-duration peak ratings. Learn how C-rating relates to battery current and why the battery, BMS and inverter must be assessed together.

Inductive, Resistive and Electronic Loads: Why Watts Alone Are Not Enough

Explore how heaters, pumps, compressors, computers and LED lighting place different demands on a power system. Understand running consumption, starting current and power factor through familiar examples. Learn why appliance behaviour matters when selecting inverter capacity, battery output and protection.

“All-Weather Solar Panels”: What Does the Claim Really Mean?

Separate a panel’s ability to withstand outdoor conditions from its ability to generate electricity. Explore how cloud cover, shading, temperature, dust, and available sunlight affect production. Learn what to ask when a quotation describes panels as “all-weather,” and which specifications support claims about durability or low-light performance.

What Is MPPT, and Why Does It Matter?

Understand maximum power point tracking and how it helps a solar system extract available power as conditions change. Learn the difference between the MPPT function and a standalone solar charge controller. Explore multiple trackers, different roof orientations and the importance of matching panel strings to the equipment’s voltage and current limits.