Renewable Energy & Power Quality Journal No.10, 25th April 2012 ISSN 2172-038X WE HEREBY CERTIFY THAT the paper: Developing a Platform for Energy Efficiency Monitoring J. Lourenço(1), N. Neves(1,2), F. Reis(2 ) N. Valente(1,2) 1. Research and Development Center, CIDISPGaia, Instituto Superior Politécnico Gaia Vila Nova de Gaia. Portugal 2. Wideskills – Inovação, Projectos e Soluções, Lda.Vila Nova de Gaia. Portugal was published in the Renewable Energy & Power Quality Journal (RE&PQJ), No.10, 25th April 2012, RE&PQJ-10, ISSN 2172-038X. Lalín, 25th of April 2012 Manuel Pérez Donsión RE&PQJ Main Editor