“Integrated Asset Management” for transmission and distribution networks at Vattenfall

Abstract

Vattenfall´s distribution and transmission networks cover both city and rural parts of Sweden. This leads to the challenge for Vattenfall that its strategic asset plan must consider structural differences and technical, regulatory, financial and capacitive restrictions at the same time. In addition, a balanced link between different planning phases is necessary to increase acceptance and feasibility of the derived strategic asset plan.To meet these requirements the existing asset simulation model for Vattenfall Distribution Sweden is significantly extended to show the effects of structural differences of the networks (e.g. on prices, quality, maintenance) by splitting into city, urban and rural asset groups. Additional target values like risks and financial indicators (regulated revenue cap, cash flow and internal rate of return (IRR)) are now available. To break down the strategic asset plan a list of measures for individual assets can be created. This will facilitate integration with long-, mid- and short-term planning in order to increase acceptance of the strategic results and is the base of a continuous improvement process.