The use of renewable energy sources (RESs) is a need global society. This editorial, and its associated Special Issue “Grid-Connected Renewable Energy Sources”, offer compilation some the recent advances in analysis current power systems composed after high penetration distributed generation (DG) with different RESs. focus on both new control configurations novel methodologies for optimal place...

We present a radical approach to the calculation of electron correlation energies. Unlike conventional methods based on Hartree-Fock or density functional theory, it is based on the two-electron phase-space information in the Omega intracule, a three-dimensional function derived from the Wigner distribution. Our formula for the correlation energy is isomorphic to the Hartree-Fock energy express...

The paper combines two new original concepts about eco-energetic systems. The first one is related to the M.E.N. (Mega-Eco-Nega-Watt) paradigm, which is based on three different but complementary ecological economic spaces: MEGAWATT, as needed energy, ECOWATT, as ecological energy, and NEGAWATT, as preserved energy, even the renewable energies and technologies, in the context of electrical ener...

The field of Very High Energy (VHE) γ-ray emitting extragalactic sources has considerably evolved since the new generation of atmospheric Čerenkov telescopes (ACT) of improved sensitivity, such as H.E.S.S. array and the MAGIC ACT, have started operating. This has led to a wealth of new clues about emission mechanisms at high energy through the discovery of new sources, more accurate spectra and...

The research focuses on the evolution of non-hydroelectrical renewable installed capacity from 2001 to 2017 in nineteen countries Latin America and Caribbean (LAC) region. deployment new renewables has several characteristics that point nonlinear relationships with its drivers. In accordance, quantile regressions econometric technique Canay was used. option use this stem model estimation can ca...

The concept of Virtual Power Plant (VPP) has arisen over a decade ago from the relatively low competitiveness back then emerging non-dispatchable RES. A set smaller generators imitates behavior large synchronous generators. So far, static aspects such as generation or slow dynamics have been interest, it is case for zonal secondary frequency control scheme in Spain, which can be viewed VPP. How...