NextEra Energy Partners' strategy shifts haven't had the desired effect.NextEra Energy Partners (NEP -0.10%) currently pays a monster dividend. The renewable energy producer has an eye-popping yield currently in the mid-teens. It has continued to grow its big-time payout, which has risen 6% over the past year. However, a day of reckoning could be coming in January. Here's a look at what might happen to the payment starting next year.Its strategy shifts aren't working as well as plannedNextEra Energy Partner ...