Definitions of many of the frequently used terms within renewable energy.
Renewable Energy Calculators & Tools
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.
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.
Determine where true solar south is for your specific location.
Helps you size the battery bank, Watts of solar power, and the solar charge controller you'll need for an off-grid solar electric system.
Fill out this form with as much information as you can, and we'll get back to you with a system design!
Our Grid-Tie System Calculator helps you size a grid-connected solar panel system.
Fill out this form with as much information as you can, and we'll get back to you with a system design!
Fill out this form with as much information as you can, and we'll get back to you with a system design!
Maps of insolation and solar PV potential across the United States.
Solar insolation data for many large U.S. cities.
Maps of insolation and solar PV potential across the Caribbean, Mexico, and Central America.
Maps of insolation and solar PV potential across South America.
Worldwide maps of insolation and solar PV potential.
Large scale overview of wind power resources for all of Mexico.
Helpful wind speed resources for assessing the viability of a small wind system for your location in the United States.
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.
Learn how to size an MPPT solar charge controller for your off-grid solar electric system and how to take advantage of some of this type of charge controller's benefits.
Handy tool for sizing wires and cables for 12-volt, 24-volt, and 48-volt systems.
Determine the maximum amount of electrical current (amps) that can safely flow through different wire gauges.
Determine what size inverter-to-battery cables and DC breaker (or fuse) you should use with an off-grid inverter to install and operate it safely.
Use this chart to size the correct diameter pipe for your solar water pumping system.
Fill out this form with as much information as you can, and we'll get back to you with a system design!
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.
Figure out which renewable energy system is right for you and find links to contact us for any kind of system design and quote you need.
Solar energy is a resource for all parts of the world. Read on to find out more about your specific location.
A brief description of the major components of a Solar PV System. Note that components vary depending on whether or not batteries will be used in your system. There are additional small components required for a complete installation that are not listed here.
A: This is a trick question! There is no direct correlation between square footage and watts of solar to power the home.
Sizing a solar panel array is easier than you might think.
Facing true south in an unobstructed location is extremely important to the proper functioning of a solar electric system.