The problem with subsidies or 'favored' sectors or tax schemes is highlighted by KenGen's Tax Credit on the Sangoro & Kindaruma plants. KenGen could not have located them in an urban area so there is no real benefit to the 'rural' area. Furthermore, the power plants had to be located in areas where the fuel [water/hydro] was available so even without the Tax Credits, KenGen would have still gone ahead as long as the economics made sense.
What Kenya should do is encourage rural development by investing in infrastructure like roads or access to electricity rather than provide subsidies or breaks to a part of the business community. Most of the power generated by Kindaruma will end up being used in urban centers [not many jobs created that would not have been created] yet the Tax Concession on Capex was meant to foster (re)locating businesses to Rural areas that would otherwise have been located in congested urban areas.
Anyway, that is on a macro level. As far as KenGen is concerned, take the Tax Concession coz it contributes a lot of one-time boost for the EPS ... and there are other capital projects coming up!
Greedy when others are fearful. Very fearful when others are greedy - to paraphrase Warren Buffett