The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Recep Bakis - One of the best experts on this subject based on the ideXlab platform.
-
the current status and future opportunities of Hydroelectricity
Energy Sources Part B-economics Planning and Policy, 2007Co-Authors: Recep BakisAbstract:Abstract This study presents the status of and prospects for the current state of small hydropower technologies used to produce electricity and assesses their future prospects. The hydropower currently provides about 20% of the world's electricity supply and more than 40% of the electricity used in developing countries. Norway produces more than 99% of its electricity with hydropower. The hydropower is the leading source of renewable energy, providing more than 97% of all electricity generated by renewable sources. The chief advantage of hydro systems is elimination of the cost of fuel. Hydropower on a small-scale is in most cases “run-of-river,” with no dam or water storage, and is one of the most cost-effective and environmentally benign energy technologies to be considered both for rural electrification in less developed countries and further hydro developments in Europe.
Arjen Ysbert Hoekstra - One of the best experts on this subject based on the ideXlab platform.
-
the blue water footprint of the world s artificial reservoirs for Hydroelectricity irrigation residential and industrial water supply flood protection fishing and recreation
Advances in Water Resources, 2018Co-Authors: Rick J Hogeboom, Luuk Knook, Arjen Ysbert HoekstraAbstract:Abstract For centuries, humans have resorted to building dams to gain control over freshwater available for human consumption. Although dams and their reservoirs have made many important contributions to human development, they receive negative attention as well, because of the large amounts of water they can consume through evaporation. We estimate the blue water footprint of the world's artificial reservoirs and attribute it to the purposes Hydroelectricity generation, irrigation water supply, residential and industrial water supply, flood protection, fishing and recreation, based on their economic value. We estimate that economic benefits from 2235 reservoirs included in this study amount to 265 × 109 US$ a year, with residential and industrial water supply and Hydroelectricity generation as major contributors. The water footprint associated with these benefits is the sum of the water footprint of dam construction (
B E Clothier - One of the best experts on this subject based on the ideXlab platform.
-
the water footprint of Hydroelectricity a methodological comparison from a case study in new zealand
Journal of Cleaner Production, 2011Co-Authors: Indika Herath, M Deurer, D J Horne, Ranvir Singh, B E ClothierAbstract:Abstract Hydroelectricity has been rated to have a large water footprint (WF) on global average. We assessed the WF of Hydroelectricity by three different methods using New Zealand as a case study. The first (WF-1) and second (WF-2) methods only consider the consumptive water use of the Hydroelectricity generation system, while our third method (WF-3) accounts for the net water balance. Irrespective of the method, the WF of New Zealand’s Hydroelectricity was found much smaller than the commonly cited international value of 22 m3 GJ−1. Depending on the method, the national WF ranged from 1.55 m3 GJ−1 (WF-3) to 6.05 m3 GJ−1 (WF-1). The WF- 3 considers the net water balance including rainfall, which is the key driver for replenishing water resources. It provides meaningful information that helps our understanding of the differences of the WF in locations, which are diverse in terms of water resource availability. We highlight the effects of local climatic differences and the structural specifics of a Hydroelectricity scheme on the WF. The large variation in the WF of hydropower across New Zealand illustrates the inappropriateness of using global average values. Local values, calculated using our hydrologically rational method, must be used.
Eba Erik Vleuten - One of the best experts on this subject based on the ideXlab platform.
-
small scale hydropower in the netherlands problems and strategies of system builders
Renewable & Sustainable Energy Reviews, 2016Co-Authors: T Tanja N Manders, Johanna Hoffken, Eba Erik VleutenAbstract:Small-scale Hydroelectricity (hydel) currently receives worldwide attention as a clean, green, and socially just energy technology. People generally assume that downsizing hydel plants reduces harmful impacts. However, recent debates call for careful circumspection of small hydel’s environmental, social, and economic sustainability, if we are to avoid conflicts, costly setbacks, and hype-disappointment cycles. This paper provides such a circumspect case for the Netherlands, an interesting country thanks to its highly institutionalized water sector. We highlight the importance of studying hydel power as part of a larger, interconnected Large Technical System. For selected cases, we identify what tensions small hydel ‘system builders’ are facing and discuss which strategies they use to address these problems. We distinguish ‘yield to fit in’, ‘confirmative policy focus’, and ‘hydel legitimation’ strategies for the development of small-scale hydropower in the Dutch highly-institutionalized wet network.
Emily Grubert - One of the best experts on this subject based on the ideXlab platform.
-
conventional Hydroelectricity and the future of energy linking national inventory of dams and energy information administration data to facilitate analysis of Hydroelectricity
The Electricity Journal, 2020Co-Authors: Emily GrubertAbstract:Abstract Within the energy community, conventional dam and reservoir-based Hydroelectricity is often viewed as a low-cost, immediately available zero-carbon resource that could facilitate more intermittent renewable electricity integration, seasonal storage, and other grid benefits. Conventional Hydroelectricity systems, however, are potentially unique among power plants in that energy provisioning is not the only priority for their fuel, stored water. This paper presents a record linkage between electricity- and dam management-oriented datasets to facilitate attention to the fundamental challenge of altering operational regimes for systems that have other uses.
-
water consumption from Hydroelectricity in the united states
Advances in Water Resources, 2016Co-Authors: Emily GrubertAbstract:Abstract Understanding the relationship between water and energy systems is important for effective management of both resources. Improved data availability has made more comprehensive modeling of hydropower and its water use possible, even as droughts and climate change have made questions about reservoir evaporation responsiveness more timely. This work makes three main contributions: first, it presents national and regional estimates of gross evaporation and evaporation net of evapotranspiration from local land cover (“net evaporation”) for U.S. Hydroelectricity, arguing that net evaporation is more consistent with other measures of energy-related water intensity; second, it introduces and validates a method for estimating system-wide evaporation based on primary purpose allocation that reduces data requirements by two orders of magnitude; and third, it makes available for public use a full Penman–Monteith model with multiple built-in sensitivity analyses. Based on this model, the U.S. hydropower system consumes an estimated average of 1.7 m3 of net freshwater per GJ electricity produced (11 m3/GJ gross).
