Decide Batttery Grid Sytem

Benefits & Drawbacks: Decisiion, Decide, Battery or Grid Solar Systems,Solar Energy, PV Panels, Photovoltaics, Solar Power, Renewable Energy, Alternative Energies, Solar, Wind, Geothermal, DFW, Dallas Fort Worth North Texas North Central Texas

Photovoltaic Solar Systems

Decision:Battery or Grid Solar Systems
Renewable Energy for Green Homesand Businesses

News of Renewable & Alternative Energy

Join our email list here

Renewable Energy 
& Green Services

Consulting  
Economics of Green
  

Energy Audits
 
Green Building 
Green Remodeling 
Rainwater Harvesting 
Renewable Energy   
Solar Electric
 
Solar Hot Water 
Wind Energy 
Glossary

 

There are two major types of solar electric systems. They are:

  • Stand alone system, also known as a battery or off-the-grid.
  • Utility-tied, better known as either grid-connected or grid-tied.

Assuming you have a sunny location with the proper orientation, there is a decision to be made: Tie into the grid or go with a stand alone system? The differences revolve around the storage systems, the accessibility of the grid, and the time and money involved.

For some this is an easy decision; for others, it is more difficult. And for those who live in rural areas, there is often no choice but the stand-alone system.

Consider these pros and cons of each system before making your decision.

An "off the grid" or "stand alone" system:

  • Must supply 100% of your electricity needs–thus must be larger.
  • Is more expensive to install and maintain than a grid-connected system.
  • Requires management and maintenance of the battery bank.
  • Uses batteries which have a limited life and must be replaced at intervals of time.
  • Is still operational when a grid is experiencing an outage.
  • May require a fossil-fuel generator if the system is down for any length of time.
  • Is more practical when a home is more than several hundred yards from an existing power line.

An "on the grid" or "grid-connected" system:

 

  • Can supply any percentage of your home’s electricity needs.
  • Is less expensive to install than a stand-alone system.
  • Requires little-to-no maintenance or replacement of parts.
  • Is only operational during sunlight hours even when the utility grid is experiencing an outage.
  • May require a fossil-fuel generator or battery storage if the grid is down for any length of time.
  • Is more practical when net metering is available.
  • Is more practical when the home is close to utility lines.

Remember:

 

1. Any PV system can be installed as a single power unit, or as a hybrid system in conjunction with other sources of electricity such as wind or water power.

 

2. Either can also have backup power such as a fossil fuel generator.

 

3. A grid-tied system can be installed over a period of years as budgets allow. It may not as cost effective, or even possible to do that with a stand-alone system.

 

Green  & 
Renewable
Energy 972 251-1532 or 
817 433-2553

Subscribe to free Dallas-Fort Worth Renewable Energy e-newsletter

Sent periodically with home remodeling news and information. 
Also includes calendar of green events and classes.

Home   Contact   Consult  

Copyright © 2008-2011 DFW Green Building and Renewable Energy. All rights reserved.Reprinted with permission which is not universally given. Please contact DFWGreen Building and Renewable Energy for permission in writing before using thesecopyrighted materials

Note: The opinions expressedherein are exclusively those of the writers or other participants and do not necessarily reflect theposition of CyberParent. They are not intended to take the place of advice of ahealth, legal, or other professional whose expertise you might need to seek.