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Off Grid Solar Power Systems

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kWh Calculator

kWh Calculator

A helpful tool for estimating your electricity usage when you don't have old utility bills handy - and an essential tool for planning a system that will meet your electricity needs.
Solar Power System Components

Solar Power System Components

This 4-part video series covers the primary components of a solar power system: solar panels and storage batteries, charge controllers and inverters, solar panel racking, and overcurrent protection.
Intro to Solar Panels

Intro to Solar Panels

This 2-part video series discusses solar panel basics: voltage, current, power, grid-tied vs. off-grid applications, Standard Test Conditions, connecting modules, and mono vs poly solar cells.
Solar PV Panels Overview

Solar PV Panels Overview

Solar electric panels (also known as photovoltaic modules) are perhaps the most popular of the renewable energy technologies for home owners. This article goes over some of technical basics behind solar electric panels and how they are used in larger systems.
MC Cable Types

MC Cable Types

PV modules often come with special connectors (wires) on the back rather than just a junction box. There are several different types of connectors, and it's important to understand the difference between them.
How to Select an Inverter for Your Needs

How to Select an Inverter for Your Needs

All inverters convert direct current (DC) electricity into alternating current (AC) electricity, but that's where the similarities end between inverters. These days, a huge number of brands and options are available to consumers, and the correct choice for you depends on how you intend to use it.
Expanding a Deep Cycle Battery Bank

Expanding a Deep Cycle Battery Bank

If you’ve added new appliances, purchased an EV, or have more people living in the house now than when you first designed your system, your batteries may not be able to keep up with your new energy demands.
How Charge Controllers Work

How Charge Controllers Work

Solar charge controllers are an essential element to any solar electric panel system. At a most basic level, charge controllers prevent batteries from being overcharged and prevent the batteries from discharging through the solar panel array at night.
How to Wire a Solar System

How to Wire a Solar System

Learn to calculate NEC-compliant wire sizes for an off-grid or grid-tied solar PV system, including de-rating calculations for temperature, conduit fill, distance off the roof, and more.

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