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Energy Efficient Motors FAQs
Background information :: How to participate :: FAQs :: Pamphlets & Brochures
:: How to become an accredited supplier :: EE Motors Calculator 
1. Do energy efficient motors use star/delta soft starters?
3. Who is responsible for the installation of the motors egg coupling to drives and electrical?
5. Do energy efficient motors come in standard frame sizes?
6. What is the expected saving on switching to an energy efficient motor?
7. Is the discount claimed by the seller or the purchaser?
8. Where are the forms available to initiate a claim?
9. What time frames will be applicable for payment?
14. Can the installation date of newly acquired DSM motors be extended from the 21 day period?
1. Do energy efficient motors use star/delta soft starters?
Any motor can use a soft starter but this depends on the user configurations.
2. Our factory applications where we could use energy efficient motors are very dusty. What are their properties with respect to dust?
Motors have various IP ratings, e.g., IP56, IP4X, IP66, these ratings indicate the capability of the motor to withstand certain conditions, and the user should match the best motor to his specific application.
3. Who is responsible for the installation of the motors egg coupling to drives and electrical?
You should appoint someone with the relevant electrical skills to do it for you; generally it is the user himself who does the installation.
4. Who are the participating suppliers and will they be able to serve farmers in the Karoo? What are their stock levels?
To date May 2009, the registered suppliers are Bearing Man, ABB, Zest Electric motors, CMG motors and Indusquip Marketing. They stock all sort of motors with various IP ratings, including Eff 1 motors. Direct communication with them will confirm their ability to supply in outlying areas such as the Karoo.
5. Do energy efficient motors come in standard frame sizes?
Most Eff 1 motors are available with the same frame sizes as the standard ones, there are however slight deviations with some larger motors which are not covered by the program.
6. What is the expected saving on switching to an energy efficient motor?
Your expected savings depends on a number of factors: kW size, operating hours, motor efficiency rating and number of times repaired. A calculator to help you do this calculation is currently under construction and will be posted on www.eskom.co.za/dsm in due course.
7. Is the discount claimed by the seller or the purchaser?
The motor supplier (seller) who has sold an energy efficient motor to the end user makes a claim for the reimbursement of the incentive to Eskom on a monthly basis.
8. Where are the forms available to initiate a claim?
Participating suppliers (Bearing Man, ABB, Zest Electric motors, CMG motors and Indusquip Marketing.) will complete the forms on supplying Eff 1 motors.
9. What time frames will be applicable for payment?
The end-user gets an instant discount; the supplier gets a payment from Eskom DSM every month.
10. Must the motor bear the SABS mark of approval and be an Eff1 (premium efficiency) motor to qualify for the subsidy?
Yes, the supplier must have the SABS approval to use the mark on their products and the motors will be labelled Eff 1.
11. Eff2 (improved efficiency) does not qualify although the efficiency for large motors is marginal from Eff1 motors.
Eff 2 motors do not qualify and yes, bigger motors tend to be more efficient by design.
12. Will the subsidy amount also be applicable to new installations? In other words - will I qualify for the subsidy when I install a new motor or is it only for exchanges of old, worn out motors?
The current program is for replacements only, i.e., an exchange program for old motors.
13. My supplier claims that his motors are good enough and there is no need to buy an EE/Class 1 motor. Is there some way to find out if their motors are as good as they claim?
If your supplier is not an accredited one on Eskom's database then they are not able to offer you the Eskom incentive. However, they could be stocking motors from one of the participating accredited suppliers (Bearing Man, ABB, Zest Electric motors, CMG motors and Indusquip Marketing.). If a distributor claims their motors are as good as Eff 1 motors, find out who their supplier is and get some literature from the supplier on these motors. Compare their motors efficiency ratings against the efficiencies listed on the Eskom DSM website www.eskom.co.za/dsm for the EFF1 motors.
14. Can the installation date of newly acquired DSM motors be extended from the 21 day period?
Yes, the time period has been extended to 90 days, to allow for the changeover to happen during planned stoppages.
15. Can a customer receive an Eskom subsidy if replacing old DC and Slip Ring motors with Squirrel cage motors and VSD drives?
No, not under the current EE Motors Program.
16. Should a customer want to replace and old 11kW 4 pole motor with a new 15kW 4 pole motor, does he receive the subsidy for the 11kW motor or the newly purchased 15kW motor?
In this instance, the subsidy amount will be based on the 11 kW (replaced motor). However, if it was a case of downsizing, then the subsidy would be based on the new motor (smaller sized motor). The rationale is that we don't want to promote capacity increments, i.e., the 15 kW motor will draw more than the 11 kW. Our aim is that end-users will do assessments and down-size their motors as many of them are currently over-sized.
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