One strategy Asia is assessing to improve transmission capacity and grid reliability is advanced transmission technologies that promote efficient interconnection and sustainability. To enhance Asia’s energy transition, Black & Veatch is extending its Breakthrough Overhead Line Design® (BOLD) consultancy services to India, Indonesia, Philippines, Thailand, and Vietnam. Black & Veatch is the exclusive design consultant of BOLD®’s innovative transmission line technology in Asia.
“Existing transmission corridors, or Right-of-Way (ROW), are crowded and restrict expansion possibilities. Asian utilities are finding it increasingly difficult to acquire new ROWs for transmission lines, especially within urban areas. The opportunity is in optimizing the use of ROWs to increase power capacity to meet consumer needs, while allowing for integration of renewable energy. Combining BOLD’s advanced transmission line design with Black & Veatch’s proven engineering and deployment expertise is one way to realize this opportunity,” said Narsingh Chaudhary, Black & Veatch's Executive Vice President & Managing Director, Asia Power Business.
BOLD® structures and specifications have the potential to provide higher power delivery capacity, allowing more power to be transmitted and delivered while mitigating community impacts through lowered structure heights and reduced footprint over traditional approaches. That means less land is needed to fulfill capacity needs.
The BOLD® proprietary design technology uses a single, arched cross-arm to hold two circuits, a compact circuit arrangement and a unique insulator assembly allow for a lower profile that can ease siting and land acquisition processes. The design can maximize existing ROWs by replacing old transmission lines with smaller-footprint, higher-capacity BOLD® lines.
BOLD® structures can also reduce the total width required for a new corridor. A 150’ ROW with BOLD® structures can deliver almost 2000 megawatts (MW), while a typical configuration would require as much as 450’ of ROW to carry a similar capacity of power.
Relative to conventional 345-kilovolt (kV) power lines, BOLD can provide up to 60 percent greater power-carrying capacity, potentially lowers line losses by as much as 33 percent, and reduces structure height by up to 30 percent. The design’s use of a compact delta phase bundle arrangement has demonstrated the capability to reduce ground-level magnetic fields by up to 50 percent. One BOLD® 345kV double-circuit line can deliver the same power carrying capacity as three traditional 345kV single-circuit lines.
BOLD® technology also minimizes complexity and cost of compensation and brings new and replacement circuits into service more rapidly.
“Power transmission technologies are a core pillar of Asia’s integrated power infrastructure strategy,” said Chaudhary. “An integrated power infrastructure takes advantage of different generation, transmission and distribution technologies to help utilities overcome the pitfalls of aging infrastructure assets while meeting rising customer demand for energy that is renewable and reliable.”
A market leader in power transmission and distribution infrastructure, Black & Veatch offers a full range of service from consulting, engineering, to full Engineering, Procurement and Construction (EPC) including monitoring and maintenance system, with the ability to integrate renewable energy solutions to meet clients’ needs in transmission and distribution network stability and reliability.
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Editor’s Notes:
- Black & Veatch has been engaged in transmission and substation work since the 1940s. In 2019 alone, the company completed more than 1,900 substation and 500 transmission projects globally.
- The company’s full EPC experience in Asia for Gas Insulated Substations (GIS) is supported by architectural, civil and structural and full transmission capabilities.
- Black & Veatch was part of a consortium that built a 500 kV GIS, 230 kV GIS, and 115 kV new substation at Chachoengsao 2 for the Electricity Generating Authority of Thailand near Bangkok.
- In Singapore, the company provided conceptual and detailed engineering for the 230/66 kV GIS substation in the Singapore National Environment Agency’s Integrated Waste Management Facility.
- Black & Veatch was involved in Indonesia Perusahaan Listrik Negara’s 150 kV Lontar Evacuation Substation project.
- Indonesia’s Jawa Satu Power appointed Black & Veatch as Owner’s Engineer for its 500 kV evacuation substations and transmission line between Chilamaya and Cibatu.
- The company’s experience includes lattice-steel, tubular steel, concrete and wood structures with all possible configurations. Black & Veatch provides engineering and design in urban and rural areas with voltages ranging from 66kV to 765kV. Its interconnection and collector substation project experience include a wide variety of bus configurations and voltage levels through 765kV.
About Black & Veatch
Black & Veatch is an employee-owned engineering, procurement, consulting and construction company with a more than 100-year track record of innovation in sustainable infrastructure. Since 1915, we have helped our clients improve the lives of people in over 100 countries by addressing the resilience and reliability of our world's most important infrastructure assets. Our revenues in 2019 were US$3.7 billion. Follow us on www.bv.com and on social media.
About BOLD®
BOLD® is a compact transmission line design that combines the advantages of higher capacity, lower energy losses, and a lower-profile structure with less visual impact. BOLD® was created to maximize the use of land for transmission line corridors (right-of-way) and avoid complex specialized equipment like series capacitors. The technology is currently deployed in multiple lines in the United States. Learn more at boldtransmission.com.