A Loss Analysis for a 28% Efficient 520X Concentrator Module
A module efficiency loss analysis has been conducted by comparing the efficiency of the module on-sun (28.2% peak) to the efficiency of the bare cell measured in the laboratory (35.5% peak). This analysis suggests that there are two main loss mechanisms in the module: elevated operating temperature and an optical efficiency less than unity. This analysis also suggests that the effects of spectral and intensity non-uniformity have been well controlled
On the influence of real operating conditions on the energetic parameters of different types of solar photoelectric facilities
Results are presented of comparison of tracking solar photoelectric facilities (SPEF) with multitransition photoconverters (PEC) and solar radiation (SR) concentrators and fixed planar SPEFs with silicon PECs regarding their specific energy production. Relations to determine the real SPEF efficiencies as a function of the atmospheric mass value are presented. The annual sums are calculated of the specific electric energy transferred from the SPEF to the mains network.
PUBLIC PARTICIPATION AND SOCIAL ACCEPTABILITY IN THE PHILIPPINE EIA PROCESS
Since 1992, the Philippines has employed an innovative requirement to demonstrate social acceptability in project planning as a means through which public participation can be established. This paper discusses the participatory mechanisms used and evaluates the effectiveness of public participation in three case studies from key development sectors. In doing so, the existing conceptual frameworks for evaluating public participation are further developed through insights to community empowerment and sustainability in particular. Whilst increased public participation has resulted in improvements in the EIA process and environmental decision making in the Philippines, the evaluation of the case studies also reveals substantial issues of conflict within the communities and of the representation of diverse local interests at core stages in the planning process.