Solar Hydrogen by Sandy Thomas

Author:Sandy Thomas [C. E. (Sandy) Thomas, Ph. D.]
Language: eng
Format: epub
Tags: The Ultimate Solution to Prevent more Climate Change
Publisher: BookBaby
Published: 2019-07-22T16:00:00+00:00

As discussed in Chapter 2, the land area required for a Solar Hydrogen Energy System (SHES) in Palmdale, California requires approximately 6.3 times more land area for a fixed-tilt PV array with a North-South tilt angle equal to the latitude of each site, compared to a horizontal one-axis tracking system with a Ground Coverage Ratio of 0.827. The hourly solar energy electricity in Palmdale, California on January 1 is compared with our assumed electricity load in Figure 4.3 for a horizontal one-axis tracking system with a Ground Coverage Ratio (GCR) of 0.8.

The resulting energy flow into and out of storage on January 1 is shown in Figure 4.4. There are two solar peaks around noon and 3 PM when the solar electricity exceeds the load, and energy is fed to the electrolyzer to produce hydrogen for storage. For most of the day energy is taken from storage to feed the fuel cell system to supply the load when the sun is not shining. In general, the solar energy peak is broader later in the year with longer days, as shown in Figure 4.5 for June 2128, resulting in a longer period of time each day when hydrogen is sent to storage as illustrated in Figure 4.6.

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