In accordance with the requirements of the PRC's State Electricity Regulatory Commission (SERC), wind turbines shall gradually be equipped with the function of Low Voltage Ride Through (LVRT) and larger unit power since 2011. LVRT refers to the ability of wind turbines to maintain continuous operation during and after abrupt voltage dips, which allows the power grid to be adjusted more quickly, thereby improving the overall safety and stability of the grid. The LVRT requirement was brought up due to many instances of wind turbines getting disconnected from the power grid in China, involving more than 1,300 wind turbines. These two requirements have been gradually adopted by grid companies in some countries, especially in Germany and Denmark. Our 1.0MW wind turbine does not meet the LVRT requirements, and therefore, we were unable to complete any domestic sales in the first quarter of 2011.
In order to resolve the marketing difficulty of our 1.0MW wind turbine and adapt to the new requirements from SERC, we started the certification process for the 1.0MW wind turbine and plan to promote it to countries and regions where the requirements of LVRT and large unit power are not necessary. Meanwhile, prototypes for larger wind turbines of 1.1MW and 2.5MW are expected to be completed by the third quarter of 2011 and early 2012, respectively, which will fill in the vacancy in our turbine portfolio in LVRT and large unit power. We believe that our planned 1.1MW and 2.5MW wind turbines will promote our competitiveness and expand our domestic and overseas markets, as they are being designed to meet the trends of wind turbine development.
Before we complete the development of our 1.1MW and 2.5MW wind turbines and introduce them into the market, we expect that the sales dilemma for 1.0MW wind turbines in our domestic market will continue. At this current stage, we are focusing our resources on research and development activities and exploring both the domestic and overseas markets for new products.
In addition to the current 1.0MW two-blade wind turbine, the Company's 1.1MW turbine has been completed its designing process and is under prototype assembly stage at the moment. In addition, another 2.5MW turbine is also under development. In contrast to the 1MW turbine, these two newly developed products will enable the Company to expand its business into wind farms that require turbines to have larger unit power and Low Voltage Ride Through Capability (LVRT), a new requirement issued by PRC's State Electricity Regulatory Commission for wind turbines to be capable to maintain continuous operation during and after abrupt voltage dips and allow the power grid to be adjusted more quickly, thereby improving the overall safety and stability of the grid.
As a result of new PRC requirements, certain orders previously announced by the Company that have not been executed may be cancelled as the 1.0MW turbine does not qualify for the LVRT requirements. However, management does not anticipate that these LVRT requirements will affect GC China's current orders that have already been executed, while they may take effect in its future business activities. The Company's development strategy for 2011 is focused on the further development and EU certifications of its 1.1MW and 2.5MW wind turbines while emphasizing low-cost control, suitable for its target markets. It expects to have its 1.1MW prototype and 2.5MW prototype turbines produced and EU certifications applied for in the second quarter and third quarter of 2011, respectively.