It's good to have tax credits which reduce the cash outflow to GoK & enables KenGen to pay off debt or increase investments. Of course, these would stop at some point but they should continue for 2-3 more years as investments in geo-thermal is ramped up.
I doubt KenGen will substantially increase the dividend payout since the cash/tax saved is needed elsewhere.
On a long-term perspective, the investments will increase power/energy for sale.
Greedy when others are fearful. Very fearful when others are greedy - to paraphrase Warren Buffett