Iran

Researchers in Iran have investigated how twisted tape in water-cooled channels can enhance heat transfer in solar modules. They have used a computer simulation to analyze the new approach with different parameters and have found the panels’ ectrical efficiency increased by up to 11.84%.

Speaking at an inauguration ceremony that also marked the start of a further 450 MW of solar plants, Iran’s President said the government is prepared to remove any obstacles facing the acceleration of new solar projects.

A global scientific team has designed a novel multigeneration system based on renewable energy and liquid air energy storage, then used soft computing techniques to optimize its operation. The optimized levelized costs of hydrogen (LCoH) were $1.52/kg and $5.22/m³.

Scientists used geographic information systems and analytical hierarchy process methods to identify Iran’s most suitable areas for PV water pumping systems. They found 43.2% of land unsuitable, with Ardabil province the most favorable.

An international research team has conducted an extensive overview of bifacial solar modules from 39 countries. Their analysis took into account the best of the median values indicated in the product specifications and found that heterojunction and back-contact panels provide the best parameters.

Researchers have combined the theory of planned behavior, the technology acceptance model, and diffusion of innovations theory to investigate rooftop solar adoption in China. From a 1,200-person survey, they found that subjective norms and social influence from peers and community had a surprisingly more substantial effect than personal attitudes or perceived ease of use.

Scientists in Iran have developed a novel framework to optimize the capacity of PV and battery storage in smart homes, using a two-stage stochastic programming model. They considered the uncertainties in the grid, market price, and PV output, while also looking at different operation cases.

Researchers in Iran developed a passive solar module cooling method using silicon carbide porous ceramic. When combined with phase change materials, the technique reportedly boosts panel performance by up to 7.4%.

A research team in Iran has designed a four-terminal perovskite-silicon tandem solar cells with a 19.3%-efficient bottom heterojunction cell and a 12.7%-efficient perovskite top cell. Both subcells were conceived to have interdigitated back contacts, with the top cell reportedly helping to improve the tandem device’s light-trapping and efficiency.

Scientists in Iran have designed a CPV system that integrates a paraffin-based nanomaterials cooling system with fin, as well as thermoelectric generators that turns wast heat into electricity. Simulated results demonstrated that, with the cooling system in place, the PV efficiency improves by approximately 16.46% in clean conditions.