Recently, Gree Iran dealer has successfully contracted the first Gree overseas photovoltaic direct-driven inverter centrifugal chiller project with Iran’s best technological university -- Teheran University. It takes almost a year from the beginning of negotiation to the final conclusion of this contract.
Tehran University is known as the oldest university with the largest scale in Iran. It was founded in 1934 and covering about 225 thousand square meters. In recent years, Tehran University’s teaching and scientific research have increasingly attracted people’s attention.
Since 2005, Gree and N company have launched the promotion and cooperation on Gree Brand. N company spares no effort to promote Gree Brand and Gree products, which has greatly increased Gree’s popularity in Iranian market. Meanwhile, Gree’s excellent product quality also has won a high praise in the local market. Upon these years’ endeavors, Gree products have accounted for 15% of market share in Iran’s air conditioner market, which has become a widely known model of “Made in China” and “China’s Quality”.
In the primary stage of negotiation for the project, the project owners had qualms about return period of such investment, because comparing with general centrifugal chiller projects, the photovoltaic direct-driven inverter centrifugal chiller project requires one more investment – photovoltaic system. Therefore, the primary stage investment will be 100%~150% higher than general centrifugal chiller investment. In order to persuade project owners to adopt Gree photovoltaic direct-driven inverter centrifugal chiller project, Gree project team made an overall comparison analysis with Gree Iran dealer NIA company, to calculate the investment return period and eco-friendly economic benefit the project can bring. Finally, project owners accepted Gree’s project solution.
It is known that Gree photovoltaic direct-driven inverter centrifugal chiller adopts initiallycreated ternary current commutation technology, and is integrated with the function of photovoltaic dc-to-ac converter, it is the world’s only power generation and consumption integrated central air conditioner solely owned by Gree. Photovoltaic power generation system is the power generation unit of photovoltaic centrifugal chiller system, which can not only provide clean energy for air conditioner, but also can supply surplus electricity to public power grid. The utilization ratio of photovoltaic power can be up to 99.04%, and the time for energy dynamic switch is less than 10ms. On December 21, 2013, Gree photovoltaic direct-driven inverter centrifugal chiller system was appraised as “World’s initially created, international leading”, which has achieved power self-sufficiency for central air conditioner, and paved the way for the era of zero energy consumption of central air conditioner.
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