Lenovo Laptop Uses Only 7.4 kWh Per Year
TopTen USA, which issues quarterly rankings for computer energy efficiency, finds the most energy efficient laptop is the Lenovo ThinkPad T430s, using 7.4 kWh of electricity in a year of typical use.
The average comparable model uses 28 kWh per year – more than 3 times the energy. On average, TopTen-listed laptops use about 48 percent of the energy of comparable models.
The TopTen’s laptop rankings are:
- Lenovo ThinkPad T430s
- Apple Macbook Air MD231, MD223/224
- Apple Macbook Pro MD212, MD213
- Acer Aspire S7-191, 391
- Lenovo IdeaPad S300
- Apple Macbook Pro MC975, MC976
- Acer Aspire V5-571
- Samsung 300 Series
- MSI GX60
- Dell Precision M6700
Computers using minimal amounts of power can do everything their inefficient competition can do, according to TopTen USA. The company says a regular, rapid improvement in computing power has been observed since 1965, when Intel founder Gordon Moore offered the analysis now known as “Moore’s Law,” tracking the rapidly increasing number of transistors that can fit on a chip. But it wasn’t until a year or so ago that the correlating reduction in energy consumption was quantified by Stanford University’s Jonathan Koomey and a group of colleagues. They recognized that the number of computations a computer can make using a given amount of electricity has doubled every 1.6 years since the 1940s.
TopTen USA is a nonprofit founded in 2009, dedicated to speeding the adoption of high-efficiency consumer products. Organized with the support of utilities, regional and national energy efficiency alliances, and national environmental groups, TopTen’s experts identify the ten most efficient models in each of the most energy intensive consumer product categories.
Another group that ranks energy efficiency of consumer products is the Super-efficient Equipment and Appliance Deployment (SEAD), an initiative of the Clean Energy Ministerial, a high-level global forum launched by the Department of Energy and other leading governments in July 2010 to advance clean energy technology.
Why bring buildings online? What information can operations teams glean from real-time data that they can’t just get from the monthly data provided by utility companies? Click to learn more.
- Existing Building Technologies Combine for Increased Savings
- 2014 Environmental Leader Product and Project Awards
- BuildingIQ's Meter Processing Flow
- Let's Do The Math for DR
- Improve Your Company's Environment and Energy Performance
- Smart Companies Utilize Integrated Energy Solutions
- 2013-20114 Winter Polar Vortex
- Combined Heat and Power
- How "Fixed" is the Fixed Price Product?
- Increase the Value of Demand Response Through Automation
- Cut Costs and Improve Facility Operations with Energy Data
- Energy Procurement Strategies for Winter 2014 and 2015
- Energy Efficiency Requires Engineering Efficiency
- Integrated Building Optimization: A Crucial Convergence of Demand-side and Supply-Side Energy Management Strategies
- Driving Productivity and Profit with Industrial Energy Management