You write all this just to deny that Kenya has capacity to explore and drill geothermal wells.. KENGEN has been drilling geothermal wells and it's no longer news.
Let me also educate you
1.KENGEN employs Kenyan engineers,technicians and other relevant scientists involved.
KenGen rigs to cut cost of geothermal drilling
2. As i had said earlier, the phase which KENGEN hire contractors is after they establish the viability of a well to have the right pressure and temp to generate power needed. Then they contract companies to bring and install power generators, because we still don't manufacture those.Just as any other govt does.
And in any case KENGEN cannot just get a contractor to drill wells that they are not sure about.
Currently KENGEN has 287 geothermal wells in Olkaria that they fully manage.
3. GDC has been contracting companies to do drilling, those are the companies you worked for. But separate to that KENGEN also drills its own wells independent of GDC.
This is how GDC works "
After harnessing steam from geothermal wells, GDC sells the steam to private companies known as Independent Power Producers (IPPs) and/or KenGen, who then convert it into electricity.
In the unlikely event that either IPPs or KenGen do not take up the steam, GDC can also generate electricity. Currently, however, there is sustained demand for steam given that GDC has succeeded in de-risking geothermal projects in Kenya making investment in geothermal energy very attractive and very viable. "
4. Also as much as GDC hires contractors, there is a big difference between contractors and consultants, ORMAT does not do consulting work for GDC, i.e what to do and the specs to meet, they are given these specs by the GDC, this cannot be done by laymen as you are saying.
5.If none of the experts are Kenyans, then why is Rwanda and Djibouti not just getting ORMAT ?? instead KenGen is offering technical support to Djibouti on the development of geothermal projects in the country.
6.There are Georthermal Independent power producers in Kenya that have the right to hire anyone they want. Many are foreign ,just like the way ORMAT hired you, though i doubt ORMAT would hire a Tanzania to do drilling in Kenya unless you were working as a Trainee as they usually train people from neighboring nations too.
Na waTZ muache hii dharau, just because something is not in TZ does not mean Kenya cannot have.