Assessment of economic feasibility for gridconnected renewable energy system for a household application in Terengganu

This article extends the conference paper ‘Simulation-based method to evaluate PV/wind hybrid renewable energy system in Terengganu’. Instead of off-grid system considered in the conference version, inspired by feed-in-tariff introduced by The Government of Malaysia, this article includes grid-connected hybrid renewable energy system to examine their feasibility to be used as power supply for a household in Terengganu. In addition, this article compares the performance of grid-only system and hybrid grid-renewable energy systems in terms of cost of electricity and emission of pollutant. The payback period is also examined based on the current sellback rate. Sensitivity analysis is done to find the best sellback rate for a hybrid grid/PV/wind system to compete with a hybrid grid/PV system. In addition, the most optimal configuration is also determined by varying the value of solar radiation, wind speed and sellback rate. Generally, it is concluded that the hybrid grid/PV system is the most practicable choice to be used as power generator to supply electricity for a household in Terengganu

Prevalence of iron deficiency and its associated risk factors among primary school children in Kelantan

Iron deficiency anemia (IDA) is the most common micronutrient deficiency that may leads to serious health problems such as poor behavior, cognitive and motor development in children. The main objective of the study was to investigate prevalence of IDA and its associated risk factors of school children. A cross-sectional study was conducted on 249 Malay primary school children (122 males and 127 females), aged 7-9 years old. Venous blood sample was drawn for hemoglobin and serum ferritin analysis. Results revealed that the prevalence of iron deficiency without anemia was 12.6% and 7.7% of the children was found to have iron deficiency anemia. Result showed that birth weight, household size, height, weight and BMI was correlated significantly with iron deficiency based on serum ferritin concentration.Keywords: iron deficiency anemia; school children; hemoglobin; serum ferritin analysi