This report provides some practical guidance on how utilities can define their own smart grid vision, identify priorities, and structure investment plans. While most of these strategic aspects apply to any area of the electricity grid, the document focuses on the segment of distribution. The guidance includes key building blocks that are needed to modernise the distribution grid and provides examples of grid modernisation projects. Potential benefits that can be achieved (in monetary terms) for a given investment range are also discussed. The concept of the smart grid is relevant to any grid regardless of its stage of development. What varies are the magnitude and type of the incremental steps toward modernisation that will be required to achieve a specific smart grid vision. Importantly, a utility that is at a relatively low level of grid modernisation may leap frog one or more levels of modernisation to achieve some of the benefits offered by the highest levels of grid modernisation. Smart grids impact electric distribution systems significantly and sometimes more than any other part of the electric power grid. In developing countries, modernising the distribution grid promises to benefit the operation of electric distribution utilities in many and various ways. These benefits include improved operational efficiency (reduced losses, lower energy consumption, amongst others), reduced peak demand, improved service reliability, and ability to accommodate distributed generating resources without adversely impacting overall power quality. Benefits of distribution grid modernisation also include improved asset utilisation (allowing operators to 'squeeze' more capacity out of existing assets) and workforce productivity improvement. These benefits can provide more than enough monetary gain for electric utility stakeholders in developing countries to offset the cost of grid modernisation. Finally the report describes some funding and regulatory issues that may need to be taken into account when developing smart grid plans.

Smart grids are for everyone but require the vision and investment plans for grid modernization. This document provides some practical elements on how to develop a smart grid vision and investment plan with a focus on the distribution side and also briefly discusses finance and regulatory issues.

The paper `Challenges and Approaches to Electricity Grids Operations and Planning with Increased Amounts of Variable Renewable Generation: Emerging Lessons from Selected Operational Experiences and Desktop Studies' focuses on analysing the impacts of variable renewable energy on the operation and planning of the power system (mostly, generation system). It is aimed at informing stakeholders in power utilities, regulatory bodies and other relevant audiences, on the fundamentals of technical challenges and approaches to operate electricity grids with renewable energy. It covers renewable energy as a whole, but in particular, focusses on wind and solar energy. It also presents three case studies of countries, including China, Germany and Spain. The total worldwide installed capacity of wind and solar projects is growing rapidly, and several countries are noticing increased penetrations of wind and solar in their electricity generation mix. In addition to operating experience being gained from adding wind and solar capacity, several grid integration studies have been performed that assess potential grid and operating impacts from adding higher amounts of wind and solar capacity. Perhaps just as important, the electric power industry and those that conduct research on grid integration have not found a maximum level of variable generation that can be reliably incorporated, and it is clear that it is as much an economic question (how much cost in additional reserves or grid impacts is acceptable) as a technical question regarding grid operators' ability to adapt to the new challenges. In addition, while their contributions to capacity or "firm" power and associated costs are different from those of conventional power sources, variable renewable generation technologies can contribute to long-term system adequacy and security. The paper describes on the contribution of variable power sources to long-term supply adequacy requirements, i.e. how much sources like wind and solar power contribute to "firm supply" in a system. It also describes methods to find out to what extent they contribute and at what cost. It also aims at providing indicative answers to how costs to system operations be determined and when and how an integration study be done to estimate the short-term reserve costs of renewable energy. The concepts in the paper should be of interest, especially to grid planers. For grid operators, the paper summarizes a menu of strategies that the operational practices and desktop research tell about managing wind in a system at different levels of penetration. It also elucidates available strategies, amongst other crucial questions of operational impacts and challenges that operators need to be aware of, to integrate variable generation.

In their efforts to increase the share of renewable in electricity grids to reducing emissions or increasing energy diversity, developed and developing countries are finding that a considerable scale-up of investments in transmission infrastructures will be necessary to achieve their goals. Renewable energy resources such as wind, solar, and hydro power, tend to be sited far from existing electricity grids and consumption centers. Achieving desired supply levels from these sources requires that networks be expanded to reach many sites and to ensuring the different supply variation patterns of renewable are combined with existing sources in the grid to ensure the constantly varying demand for electricity is always met. Expanding networks will be crucial to achieve renewable energy objectives efficiency and effectively. Efficiency is important to ensure renewable energy goals are achieved at the lowest cost while considering needed investment in transmission. Besides the cost of transmission, which is often worth, transmission needs be planned and built in such a way that the many sites being taped are connected in a timely fashion. The challenges of ensuring efficiency and efficacy in developing transmission for renewable become surmountable if the right planning and regulatory framework for expanding transmission are put in place. This report reviews emerging approaches being undertaken by transmission utilities and regulators to solve to cope with these challenges of expanding transmission for renewable energy scale-up. Proactively planning and regulating transmission networks are emerging as the premier approach to ensure that transmission networks are expanded efficiently and effectively. Linking planning with clear and stable cost-recovery regulation can also help bringing the private sector to complement the considerable investment needs in transmission. Based on the evolving experience and on established theory and practice on transmission regulation, the report also proposes some principles that could be useful to implement specific rules for the planning, development, and pricing of transmission networks.