These two paragraphs spell out nothing more than Halbwachs taking issue with concessions, along with his opposition to every other element of the MPs. The concession policy would not normally have been a function of the Expert Group, except that the government of Rwanda recognised that they needed guidance and asked the Experts for it in Copenhagen in 2008.u003cbr/u003eu003cbr/u003eThat guidance came in the form of two parts: mapping geographic location of GEFs and allocating resource quantification.u003cbr/u003e(1) First we recommended that a concession needed to separately define geographic space for a concession (hence the development of a u0022pie-diagramu0022, centred on the deepest point along the common DRC/Rwanda border to give access to deep water, allowing each concession to work for the full lifetime of the resource.u003cbr/u003eu003cbr/u003e(2) Secondly we quantified (with the information validated by 2009) the resource by zone (LRZ, URZ and PRZ). The total resource was divided by 10, while the resource by zones was also divided into 10 slices. This was displayed in terms of a u0022Resourceu0022 pie-chart, with an indication of the potential; for power generation by zone. While these power potential production figures may no longer be accurate, at least the volumetric draw-down, calculable in cubic metres per hour of resource water by zone, should be close to correct (assuming 50 years is the duration of a concession's total life).u003cbr/u003eu003cbr/u003eHalbwachs' difficulties are not explained in the Section 3.3.8 notes. However, his notation in papers issued at about the time identified several deep-water points close to shore as proposed extraction sites. This concession methodology is not useful and cannot be made fair to all concessions. It suits his GEF design because they are small units without much scalability, other than by numbering up, and therefore need a shore location. Given that, none of these locations had depth close to 450 m, which would be desirable for long-life concessions. Given that he is asking for optimisation of concessions, he has offered examples of plant sites which are in no way capable of optimisation of everyone's concession, nor are they capable of evening out re-injection across the width of the lake.u003cbr/u003eu003cbr/u003eA final point should again be emphasized: The legacy method(s) of gas extraction, i.e. those of Halbwachs, Tietze, KP1, KivuWatt, Symbion/Shema, cannot coexist with compliant systems as they impact the level of the Main Gradient and its strength. These changes will compromise proper implementation of Plan A1/A2. This latter point requires precise levels of re-injection into the u0022knee-pointu0022 of a density gradient, just below its centre-line. Horizontal dispersion is then effective in creating a lake-wide re-injection lens that deepens with the accumulated re-injection flows.u003cbr/u003eu003cbr/u003eIf this concept is difficult for anyone to understand, we can arrange a presentation on its functionality to all that need to understand it.u003cbr/u003e