Journal
SOLAR ENERGY
Volume 85, Issue 9, Pages 2338-2348Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2011.06.028
Keywords
Active Demand-Side Management; Self-consumption; PV systems; Battery storage; Distributed energy; Smart metering
Categories
Funding
- Spanish Ministry of Education
- Spanish Ministry of Education and Science [204-2007, EN E2007-66135]
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With the rising prices of the retail electricity and the decreasing cost of the PV technology, grid parity with commercial electricity will soon become a reality in Europe. This fact, together with less attractive PV feed-in-tariffs in the near future and incentives to promote self-consumption suggest, that new operation modes for the PV Distributed Generation should be explored; differently from the traditional approach which is only based on maximizing the exported electricity to the grid. The smart metering is experiencing a growth in Europe and the United States but the possibilities of its use are still uncertain, in our system we propose their use to manage the storage and to allow the user to know their electrical power and energy balances. The A DSM has many benefits studied previously but also it has important challenges, in this paper we can observe and A DSM implementation example where we propose a solution to these challenges. In this paper we study the effects of the Active Demand-Side Management (ADSM) and storage systems in the amount of consumed local electrical energy. It has been developed on a prototype of a self-sufficient solar house called MagicBox equipped with grid connection, PV generation, lead acid batteries, controllable appliances and smart metering. We carried out simulations for long-time experiments (yearly studies) and real measures for short and mid-time experiments (daily and weekly studies). Results show the relationship between the electricity flows and the storage capacity, which is not linear and becomes an important design criterion. (C) 2011 Elsevier Ltd. All rights reserved.
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