China Engineering Group (CEEC, also abbreviated as CEEG) has been on a streak in winning contracts for renewable energy projects at home and abroad in the recent period. In its announcement made on April 13, the state-owned enterprise listed the following contracts it has just captured in the domestic market:
(1) EPC for the Luoming PV Project in Yangliu Bai and Yi Ethnic Township that is administered under the city of Baoshan in Yunnan Province;
(2) EPC for the Yangliu PV Project in Longyang District of Baoshan;
(3) EPC for the 200MW first phase of the Baishuiquan Rooftop PV Project in Jinta County, Gansu Province;
(4) EPC for Baota DG Rooftop PV Project in the city of Yan’an, Shaanxi Province;
(5) site survey and design for the 2GW Yimu Integrated DC Energy Project in Inner Mongolia; and
(6) EPC for a 300MW wind farm in Bayanhot Sumu of Alxa Left Banner (Alxa League) in Inner Mongolia
Luoming PV Project
A consortium led by CEEC was formally awarded with the tender to provide EPC service for the development of the Luoming PV Project on March 28. The winning bid price of the contract (or the value of the contract) is RMB 1.38 billion. The developer of this project is Huaneng Group, one of the five major state-owned electricity producers in China.
Located in Yunnan’s Yangliu Bai and Yi Ethnic Township, the Luoming PV Project will comprise a 350MW PV array, a 220kV booster substation, and a 35MW two-hour energy storage system (i.e., 10% of the generation capacity). Once connected to the grid and in operation, the project is estimated to generate 626,499.3MWh per year, and its full-load utilization hours are estimated to reach 1,352.6 per year on average.
Regarding environmental and socioeconomic benefits, the Luoming PV Project will cut standard coal consumption by 182,800MT per year. This calculation takes account that 304g of standard coal is burned for every kWh of electricity generated. In terms of emission reduction, the project will offset 95.93MT of SO2 per year, 107.32MT of NOx per year, 498,800MT of CO2 emissions per year, and 19.19MT of soot per year. Additionally, the project will save around 725,500 cubic meters of water per year. On the whole, the project will effectively lower the consumption of fossil fuels and other natural resources, thereby providing significant environmental benefits and energy savings. Furthermore, it will lessen the stress on the surrounding environment and enable the local community to pursue economic development that is balanced as well as sustainable.
Yangliu PV Project
Huaneng Group awarded the EPC contract for the Yangliu PV Project to CEEC on March 29. The winning bid price was RMB 700 million.
Located in Yunnan’s Baoshan, the Yangliu PV Project will comprise 58 arrays with a total installed generation capacity of 182.7MW and a 200kV booster substation. The arrays will be installed at sites that have elevations of 1,270-1,670m, and the electricity produced by them will travel through cables to the booster station.
Once up and running, the Yangliu PV Project will save around 77,600MT of standard coal per year and cut down a comparable amount of different types of harmful air pollution and emission wastes. The amounts of CO2, SO2, NOx, and soot that the project will offset per year are estimated around 211,300MT, 40.63MT, 45.46MT, and 8.13MT respectively.
First Phase of Baishuiquan Rooftop PV Project
A subsidiary of CEEC has made a successful bid for the provision of EPC in the first-phase development of the 200MW Baishuiquan Rooftop PV Project in Jinta County of Gansu Province. The company has yet to disclose the date of contract signing.
The project will adopt bifacial mono-Si PERC modules, and the installed generation capacity could surpass the original plan of 200MW to 240MW. The project will also adopt string inverters, so it will be made up of subsection arrays that operate independently but are collectively connected to the grid at single node. Each subsection will be supported by a container inverter. The module-to-inverter ratio is set at 1:2. The voltage of the electricity generated by the modules will be boosted by the string inverters and then travel through cables to the 35kV substation and switch room. This layout enables more rational operation and maintenance at the levels of individual subsections and even individual systems. Anhui Electric Power Construction No. 1 Engineering Company, which is a subsidiary of CEEC, will be responsible for the design, procurements, construction, and trial operation of the project.
Once in operation, the project will contribute to a more efficient and localized usage of renewable energy. This, in turn, will push the surrounding region toward the goals of capping emissions and achieving carbon neutrality.
Baota DG Rooftop PV Project
State Power Investment Corporation, which is another one of the five major state-owned electricity producers in China, awarded CEEC with the EPC contract for the Baota DG Rooftop PV Project on March 7. The agreement was signed by the two companies’ respective subsidiaries.
As its name indicates, the project will be located in Baota District of Yan’an City in Shaanxi Province. This will also be a district-wide effort to install PV systems on available roof areas. The contract stipulates that CEEC will be responsible for the followings:
(1) preconstruction works;
(2) site inspection;
(3) project and interconnection design;
(4) procurements of equipment and materials;
(5) system installation and facility construction;
(6) trial operation and optimization;
(7) grid connection and acceptance inspection;
(8) training workers for project handover; and
(9) providing repair and maintenance services within the warranty period
By utilizing rooftop areas for PV generation, this DG project allows individual system operators to produce electricity for self-consumption while sending the excess amount to the local grid. Furthermore, the integration of clean and renewable energy into the local grid will address the existing issue of supply-demand balance, further optimize the regional energy mix, and contribute to energy savings, emission reduction, etc.
Yimu Integrated DC Energy Project
CEEC has been successful in its bid to provide site survey, feasibility study, and project design for the 2GW Yimu Integrated DC Energy Project. The project is located in a national integrated energy base operated by Huaneng Group in the eastern part of Inner Mongolia. On the whole, the project is basically a power generation and distribution network comprising PV arrays, wind turbines, substations, and a control center that manages energy assets in the region (including thermal power plants). Its development will proceed in two phases and encompass various districts and ethnic communities. Take substations as an example. CEEC will be building a 200kV booster substation in Zalatun, another one in Arun Banner (first phase), and two 200kV substations and one collector substation in Morin Dawar Daur Banner.
The first phase, which will see the installation of 1GW, has been designated by the National Energy Administration as one of the major renewable energy projects being developed in Inner Mongolia. Its progress will be closely monitored and supported by the central government. CEEC said the construction phase will commence in May and finish by the end of this year.
CEEC further stated that the Yimu Integrated DC Energy Project will involve numerous elements related to generation, storage, transmission, and distribution. Furthermore, it will span a very large area with diverse geographical features. Therefore, the numerous construction tasks that lie ahead will be very complex and huge in scale. On the other hand, overcoming these challenges will also make this project an important model for future power infrastructure development.
Once completed, the Yimu Integrated DC Energy Project will significantly expand the supply of clean and low-carbon energy in the eastern part of Inner Mongolia, accelerate the greening of the regional grid, and improve energy security for the wider Northeast China. Moreover, it will be a major step toward the national goal of capping CO2 emissions and achieving carbon neutrality.
Wind Farm in Bayanhot Sumu
A consortium composed of entities including CEEC Hunan Thermal Power was formally awarded with the tender to provide EPC service for the 300MW wind farm in Bayanhot Sumu on March 29. The contract is worth around RMB 1.7 billion. The developer of this project is Huaneng Group.
The wind farm in Bayanhot Sumu, which is a part of the Alxa League in Inner Mongolia, will comprise 60 wind turbines that each have a generation capacity of 5MW. The project will also include a new 200kV booster substation and an energy storage system with a capacity that is no smaller than 90MW/180MW. The EPC contract for this project is the largest that CEEC Huanan Thermal Power has won to date in the market for wind farm tenders (with respect to scale and value). It thus represents a new breakthrough for the company’s new energy division.
Once up and running, the wind farm is estimated to generate 933GWh per year, and it utilization hours are estimated to reach 3,111 per year on average. Turning to environmental and socioeconomic benefits, the wind farm will lower standard coal consumption by 292,900MT per year. This amount also translates to 376,700MT of raw coal. With the coal savings, the wind farm will also bring about a comparable reduction in emissions and air pollution. CO2, CO, SO2, NOx, and soot will be cut by 466,100MT, 699,700MT, 4,844.34MT, 2,153.04MT, and 48,400MT per year respectively. CEES pointed out that the wind farm will not only protect the air quality of the surrounding region but also increase the share of non-hydrocarbon energy sources in power generation and consumption.