Photograph by Realimage/Alamy
Environmental Impact
Smart Grid
When exploring today’s smart home systems and energy meters, it’s worth keeping tomorrow’s smart grid technology in mind. The smart grid, an energy priority of many governments, is able to track total electricity use throughout the grid in real-time, and allow power sources to communicate with usage meters and even individual appliances.
The goal is a much more efficient use of energy resources by smoothing the peaks and valleys of both demand and variable supply sources, particularly for renewables like wind and solar power.
Utility companies are already installing smart meters, which log not only total power use but provide more detailed information on when and how a home requires power. Appliance producers are developing everything from clothes dryers to coffee machines that can also share energy information and receive it from the grid.
Smart grid systems will enable home energy use to occur at the most opportune times, such as when demand is low. Owners could set non-essential appliances, like dishwashers, to be cued by the grid to run automatically at off-peak (and sometimes less expensive) periods. The grid could automatically shut down devices when not in use, like untouched computers, or power others up when the time is right—like that overnight laundry load just waiting for a green light.
If growing power needs can be managed more efficiently by smart grid technologies, utilities may not need to keep adding power plant capacity—and the environmental benefits of that could be priceless.
Shop National Geographic
Advertisement
What's Your Water Footprint?
-
5 Hot Green Jobs
Companies go beyond the hype to offer actual positions.
The Great Energy Challenge
-
Light Bulb Savings Calculator
How much can you save yourself, and the world, by switching to more efficient bulbs?
-
The Global Electricity Mix
An interactive view of how regions and countries around the world generate their power.
-
Quiz: What You Don't Know About Nature's Forces of Energy
You've seen the havoc that nature can wreak, but have you ever considered how much energy is generated by hurricanes, volcanoes, or lightning?
Special Ad Section
The World's Water
-
Water for a Thirsty World
Safeguarding one of the world's most important resources.
-
Visualizing Our Global Water Footprint
You might be surprised to see how the daily choices you make affect critical watersheds around the world.