Grid systems, geographic

In the Southwest region of the United States, the area requirements of smaller photovoltaic systems can be estimated at about 6 acres per mW or about 300 acres for a smaller city requiring 50 mW. In the same geographic location, if part of the roof area is covered with collectors and is connected to the grid, the system usually can make the home energy free, including transportation by charging the batteries of an electric car with the excess electricity. 

Figure 5.71. Geographical distribution of Januctry average space heating requirements in the year 2050, based on satellite measurements of temperature (on a gross scale of an approximately 50-km grid) in combination with the scenario s assumed building standards. The variations thus reflect both dimate differences across Denmark and differences in heated space per unit cell. The map uses the Mollweide area-preserving projection, in contrast to the straight longitude-latitude co-ordinate system of, e.g.. Fig. 5.70 (Sorensen ei al., 2001).

We are brain cartographers, and, like our geographer colleagues, our central aim is to provide precise coordinates and accurate identification of features of interest. In this fourth edition of our atlas, we have used the proven stereotaxic reference system that we constructed for the first edition (Paxinos and Watson, 1982). This reference system is now universally recognized as the optimum grid for stereotaxic work in the rat brain. We have completely revised the identification of brain structures in order to produce an atlas that will be useful beyond the end of this century. 

GEOREF— World Geographic Reference System GMT— Greenwich mean time GN— grid north GZ— ground zero... 

The structure of this paper is as follows. First in Section 2, we describe the principles of GIC determination and the studied model. In Section 3, the impact of GIC on power system equipment and on the network as a whole is discussed. Finally in Sections 4 and 5, we discuss possible mitigation actions and do the comparison of power grid vulnerability in different geographical areas. 

---