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Plan a Renewable Energy Project

kWh Calculator

kWh Calculator

 Calculator/Tool   

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.
Deep Cycle Batteries Introduction

Deep Cycle Batteries Introduction

 Buying Guide   

Read more about the deep-cycling batteries used in solar and other renewable energy applications and the differences between flooded lead-acid and sealed batteries.
How to Size a Deep Cycle Battery Bank

How to Size a Deep Cycle Battery Bank

 Calculator/Tool   

If the battery bank is oversized, you risk not being able to keep it fully charged; if the battery bank is sized too small, you won't be able to run your intended loads for as long as you'd planned.
Expanding a Deep Cycle Battery Bank

Expanding a Deep Cycle Battery Bank

 Article   

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.
Batteries: Measuring State of Charge

Batteries: Measuring State of Charge

 Article   

Accurately knowing the state of charge of your batteries and keeping them properly charged can extend their life, keep your system running properly, and save you money.
How to Select an Inverter for Your Needs

How to Select an Inverter for Your Needs

 Buying Guide   

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.
Power Ratings for Common Appliances

Power Ratings for Common Appliances

 Article    Calculator/Tool   

Quickly find the the typical power rating (in Watts) of many common household appliances. Use this information to help estimate how large your alternative energy system needs to be.
Power, Energy, and the Loads List

Power, Energy, and the Loads List

 Calculator/Tool   

Preparation for any off-grid electric system begins with assessment and calculation of your energy needs. The primary tool used for this task is a Loads List.

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