Monday April 8th, 2013 

Electric Power for Today

Generation and transmission of electricity is the set of facilities that are used to transform other forms of energy into electricity and transport it to where it is consumed. The generation and transport of energy as electricity has important economic benefits because of the cost per unit produced. Electrical installations also allow use hydroelectric power at a great distance from where it is generated. These facilities typically use alternating current, since it is easy to reduce or increase the voltage transformers. Thus, each part of the system can work with the appropriate voltage. Electrical installations are six main elements:
The power
The transformers, which raise the voltage of the electricity generated at high voltages used in transmission lines
Transport lines
Substations where low signal voltage to suit their distribution lines
The distribution lines
The lower the voltage transformers which the value used by consumers.
In a typical installation, the power plant generators supply voltages of 26,000 volts higher voltages are not suitable for the difficulties in their isolation and the risk of short circuits and its consequences. This voltage is raised by a voltage transformer between 138,000 and 765,000 volts to the primary transmission line (the higher the tension in the line current and the lower the lower the losses, since they are proportional to the square of the intensity current). At the substation, the voltage becomes tensions between 69,000 and 138,000 volts to make it possible to transfer electricity to the distribution system. The new lower voltage transformers at each distribution point. Heavy industry often work at 33,000 volts (33 kV), and electric trains require 15 to 25 kilovolts. For supply to consumers is lower the tension: the industry usually work at voltages between 380 and 415 volts, and the houses are between 220 and 240 volts in some countries and between 110 and 125 in others.

Electric Power Statistics



The gross electricity demand in the Peninsula in November has reached 20,400 GWh, representing a decrease of 7.1% from the same month in 2010. Corrected for seasonal and working temperature, consumption has fallen peninsular 3.9% in this period.
In the first eleven months of the year gross demand of 233,474 GWh has been, up 1.6% from the same period in 2010. Once corrected for seasonal and working temperature, consumption was 0.8% lower than 2010.
ALUMNOS: ALAIN RUBEN OLGUIN RUBIO
                      MICHEL YAIR MARTINEZ FRAGOSO
                      GIBERTO SANDOVAL ROSAS


On 6 November at 2.00 h 59.6% of demand (20,922 MW) was covered by wind power (12,476 MW), surpassing the previous high of 54% in the November 9, 2010. This was a historical challenge that Grid as system operator know how to manage without jeopardizing security of supply.
Also, the production of energy from wind has been in November 3738 GWh representing 17.7% of total production.
During this month the generation from renewable energy sources accounted for 32.1% of the total, 1.7 percentage points lower than in November 2010. In the first eleven months, renewable energy production has accounted for 32.6% of the total, while in the same period last year was 35%.
In November, 51.8% of electricity came from technologies that do not emit CO2.