Solar Power

What are advantages and disadvantages of solar power We’re huge advocates for solar energy, but we recognize it isn’t the right solution for everyone. While solar is sustainable and ultimately cheaper than utility power in the long run, it also requires a significant up-front investment and doesn’t work for every property / roof type. The […]

What is kilowatt hour

October 9, 2018 Blog
kilowatt hour

WHAT IS A KILOWATT HOUR? Kilowatt hour measures energy usage and production. If you’re thinking about going solar (or just want some advice on how to reduce your energy consumption), you’ve probably come across the term kilowatt-hours. But exactly what is a kilowatt hour? And why do we need to know how many we use […]

Pure Sine Wave Inverter

Do I need Modified Sine Wave or Pure Sine Wave Inverter? Advantages of Pure Sine Wave inverters over modified sine wave inverters: a) Output voltage wave form is pure sine wave with very low harmonic distortion and clean power like utility-supplied electricity. b) Inductive loads like microwave ovens and motors run faster, quieter and cooler. […]

Home Backup Power Inverter

Using an Inverter for Emergency Home Backup Power Using an inverter for emergency backup power is by far the most common use. The Hurricane season is here for those of you in the east and down south. I hope that this blog will help all of you to be more prepared in the likely event […]


What size inverter should I buy? We carry many different sizes, and several brands of power inverters. See our Inverters Products for specifications on each of Prostar Inverter models. Short Answer: The size you choose depends on the watts (or amps) of what you want to run (find the power consumption by referring to the specification plate […]

What is a power inverter for?

September 20, 2018 FAQ
power inverter

What is a power inverter for? A power inverter, or inverter, is an electronic device or circuitry that changes direct current (DC) to alternating current (AC). The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. In basic terms, a power inverter is a piece of equipment that […]

How to assemble MC4 connectors and MC4 wiring cables What is an MC4 connector (male connector & female connector) and an MC4 extension cable (8ft, 15ft, 30ft, 50ft, 100ft)? If you’re asking this question, you’ve probably noticed that most modern high power solar modules are manufactured with wire leads that have MC4 connectors on the […]

Grid-tied, on-grid, utility-interactive, grid intertie and grid backfeeding are all terms used to describe the same concept – a solar system that is connected to the utility power grid. Read more about Grid-tied electrical system Advantages of Grid-Tied Systems 1. Save more money with net metering A grid-connection will allow you to save more money with […]

A grid-tied electrical system, also called tied to grid or grid tie system, is a semi-autonomous electrical generation or grid energy storage system which links to the mains to feed excess capacity back to the local mains electrical grid. When insufficient electricity is available, electricity drawn from the mains grid can make up the shortfall. […]

A photovoltaic (PV)  junction box is an important part of the solar panels. The junction box is an enclosure on the module where the PV strings are electrically connected. The majority of junction box manufacturers are nowadays based in China. How is the junction box connected to the solar panel? A PV junction box is attached to […]

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