This outlay is just the upfront construction cost.  How are the ongoing maintenance costs, such as brush cutting, inspections and ultimate replacements going to be funded for this 1,800 km. transmission line?   Was any cost/benefit analysis done to contrast this to the cost of upgrading diesel engine power generation?  And, maybe most importantly, what obligations under treaties does the government (as in we, the taxpayers) have to provide electrical power to reserves in the first place?