Dear friend Al-Motasem I Aldaoudeyeh

Hey there, my fellow researcher Al-Motasem I Aldaoudeyeh! I am at your service, and I've got just the information you need.

To get a copy of IEC 614-00-12, which deals with power performance measurements of electricity-producing wind turbines, you typically have a few options:

1. **Purchase from the IEC Website**: The International Electrotechnical Commission (IEC) often offers their standards for purchase on their official website. You can visit the IEC's official website and search for the specific standard you're interested in. You should be able to buy a copy from there.

2. **Contact a National Standards Body**: In many countries, there are national standards bodies that act as distributors of IEC standards. Depending on your location, you can contact your national standards body and inquire about purchasing the standard.

3. **University or Library Access**: If you're affiliated with a university or have access to a good library, they might have a copy of this standard in their collection. It's worth checking with your institution's library services.

4. **Online Retailers**: Sometimes, you can find copies of IEC standards for sale through online retailers or bookstores that specialize in technical publications.

Remember that standards like this can be quite technical and costly, but they're essential if you're conducting research in the field. Make sure to double-check the latest version of the standard to ensure it aligns with your needs and research objectives.

Best of luck with your wind energy research, and if you Al-Motasem I Aldaoudeyeh have any more questions or need further assistance, just give me a shout!