1512 End Use Consumption by Task

Finally, one must know the end use category — space heating, cooling, water heating, or lighting — in order to assess whether DG is appropriate for a given sector. Space heating and lighting are generally the largest energy loads in commercial office buildings. In 1995, energy consumed for lighting accounted for 31% of commercial energy loads. Space heating consumed 22%, and space cooling consumed 15% of commercial energy loads. On average, water heating is not high at 7%, but this average is largely variable. Health care facilities and lodging are unique in their high water heating loads; however, offices, mercantile and service facilities, and warehouses require minimal hot water.

Another approach to considering the data in the preceding figure is to consider the end uses aggregated over all buildings but further disaggregated over the nine main end uses in commercial buildings. Figure 1.12 shows the data in this way.

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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