  We introduce a projective Riesz $s$-kernel for the unit sphere
$\mathbb{S}^{d-1}$ and investigate properties of $N$-point energy minimizing
configurations for such a kernel. We show that these configurations, for $s$
and $N$ sufficiently large, form frames that are well-separated (have low
coherence) and are nearly tight. Our results suggest an algorithm for computing
well-separated tight frames which is illustrated with numerical examples.
