Renewable Energy in Residential Buildings Analysis of different micro-generation systems

Abstract

Portugal has to meet a target of 31% regarding the share  of  renewable  sources  on  gross  final  energy  consumption, including  10%  in  transportation,  to  meet  the  targets  imposed  on greenhouse   gas   emissions,   energy   efficiency   and   use   of renewable energy by the European Commission Climate Change and  Energy  package  for  2020  The  implementation  of  the  new National Strategy for Energy – ENE 2020, defining an agenda for competitiveness,  growth  and  energy  and  financial  independence, by  investing  on  renewable  energies  and  promoting  the  energy efficiency,  assuring  the  security  of  supply  and  the  economical and  environmental  sustainability  of  the  national  energy  model; contributing  to  the  reduction  of  CO2  emissions,  will  enable Portugal  to  meet  commitments  assumed  within  the  context  of European   policies.   In   the   National   Action   Plan   for   Energy Efficiency  Portuguese  Government  stated  the  goal  of  achieving 165  MW  of  micro-generation  installed  capacity  by  the  year  of 2015.  In  this  context,  and  according  to  the  new  Portuguese  law concerning   micro-generation   to   promote   renewable   energy sources  in  households,  we  present  in  this  paper  a  technical-economic analysis of different micro-generation systems that can be installed in a single-family house. This analysis will take into account  the  local  availability  of  renewable  resources  and  market technologies.