Agriculture - South Central PPD

Irrigation Load Control

South Central PPD was one of the first utilities in the United States to offer load management to its irrigation customers, offering “off-peak” service in 1968. Today, nearly 600 irrigators, representing over 40,000 HP, participate in South Central’s load management program. Irrigators can cut their energy costs by 20 to 30 percent when participating in load management of their irrigation systems.

Daily Status of Irrigation Load Control

During the summer, the daily status of Irrigation Load Control for South Central PPD established by NPPD is available for your reference and work management uses.

Irrigation Load Control

Engineering Consulting Service—Irrigation Systems

Engineering Consulting Service is offered to irrigation customers to take advantage of the best irrigation rates.

Upon request, South Central PPD will work with equipment vendors to assure our customer an irrigation system that will work best with the rates offered. Consulting is only offered to customers with rate questions.

Operating Costs of Electric Grain Aeration & Farm Motors

To estimate the cost of electricity used by single phase motors operating aeration fans or other equipment, estimate the hours of operation and apply the following formula:

Motor input watts x hrs. of use/mo. ÷1,000 = kWh/mo. X 7¢ = cost/month

*Single Phase Motor Data for Estimating kWh Use**
Rated Motor Size in HP	Rated Motor Size in Watts	Assumed Efficiency %	Input Watts
1/4	187	55	340
1/3	248	60	413
1/2	383	63	608
3/4	560	65	862
1	750	70	1,072
1.5	1,120	75	1,493
2	1,490	80	1,863
3	2,240	85	2,635
5	3,370	85	4,388
7.5	5,600	87	6,437
10	7,460	88	8,477
15	11,000	90	12,222
*Information provided by the Rural Electricity Resource Council