The iPhone, iPad and desktop apps also offer some pretty in-depth stats, including dollars per hour spent on energy and a chart detailing consumption throughout the day.
This is an interesting little chart showing the energy generation system in the UK today.
These are the hard facts and realities we cannot neglect whatever energy future we seek to chart for Africa.
FORBES: More On Africa's Power Problems And Possible Solutions
In the case of Parallel Energy Trust, looking at the history chart for PLT.
Chart Analysis: Valero Energy Corp. ( VLO) has had a great run to the upside since it was recommended November 7.
The daily chart of the Select Sector SPDR Energy ( XLE) shows that it closed strong on Thursday, up 0.86%.
The daily chart of the Select Sector SPDR Energy ( XLE) shows that the short-term resistance, line a, was overcome the second trading day of 2013.
As a result, energy prices for industrial users are extraordinarily high (see chart).
Chart Analysis : The Select Sector SPDR -Energy ( XLE) finished the quarter by rallying to a new high for the year in the first hour of trading on Thursday before closing lower for the day.
The chart on the right takes data from the US Energy Information Agency and plots total US inventories of crude plus all other categories of liquid hydrocarbons, and shows the change between the week ending on the x-axis date, and the inventories for the like week of 2010.
Because of the new investment and high energy prices, Trinidad's economy is growing at Chinese rates (see chart).
They began to fall this year, like those of just about every other coal company in the country as seen here in a stock chart featuring Alliance, Alpha Natural Resources ( ANR), Peabody Energy ( BTU), Walter Energy ( WLT) and Arch Coal ( ACI).
Outside America, food has a bigger share than energy in consumers' shopping baskets and thus in inflation too (see chart).
Despite the fact that Williams was one of the only companies to have reported its 2000 energy-trading revenues on the conservative basis used by financial firms (as the chart shows), its shares took a beating.
The chart above is from the World Nuclear Association, a group that promotes nuclear energy, and therefore has a vested interest.
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