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Pursuant to the 199 IAC 35.15(2), each electric utility shall file with the Board, as part of its annual report, a report stating progress to date in converting company-owned exterior flood lighting to high pressure sodium or lighting of equivalent or higher energy efficiency. Legislation in 1989 approved the regulation of public utility-owned and city-owned exterior flood lighting. It states that all newly installed exterior lighting shall be high pressure sodium lighting or lighting with equivalent or better energy efficiency.
The following table shows the status of exterior lighting on December 31, 2011, as reported to the Board in the annual reports:
| Type of Utility |
Fixtures Converted |
Percent Converted |
Fixtures Not Converted |
Total Fixtures |
| Investor-owned Electric Totals |
248,663 |
96.4% |
9,432 |
258,095 |
Interstate Power and Light Co.
|
92,968 |
95.2% |
4,721 |
97,689 |
MidAmerican Energy Co.
|
155,695 |
97.1% |
4,711 |
160,406 |
| Municipal Electrics |
59,875 |
90.0% |
6,632 |
66,507 |
| Rural Electric Cooperatives |
38,338 |
71.3% |
15,471 |
53,809 |
The investor-owned and municipal utilities have converted the largest percentage of their fixtures (from 1990 to present), 96 and 90 percent, respectively, whereas, the rural electric cooperatives have converted just 71 percent. This isn’t a date certain mandate, therefore, the utilities will keep converting their old fixtures as they become worn out.
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