Researches in Latvian power supply independence increase from external power and power sources’ supply are especially pending matter. It follows from the condition that only Latvian power system is deficit in Baltic States. Latvia must import up to 40% from total installed power. Unfortunately, in the given time power market in Baltic Sates is not ideal in accordance with its capacity. That’s why the price of electricity does not always satisfy players of the market. Due to the existing cable “Estlink” Baltic countries can also take place into Scandinavian power exchange “Nord Pool Spot”. But cable capacity 350 MW is too small to form the wholesome power market with the Western Europe. Latvia together with other Baltic countries looks out different projects of its power safety increase. One of such projects is power connection between Baltic and Sweden power systems. To increase Latvian western part’s power supply safety, power connection between Kurzeme region in Latvia and Estonian power system via the gulf of Riga is held out. Without transmission network development in western part of Latvia is not possible to develop wind power generation in the region and connect to network coal power plant in Liepaja. In the given work there are compared two strategies of transmission network’s development in the Kurzeme region that satisfy the Pareto principle by four criteria. Technical-economical analysis of alternatives in the set of compromises is made using the method of solutions’ zoning in the set of criteria. Results of analyses are demonstrated graphically