Figure 3-3 Connection options for offshore wind farms: (a) MVAC collector with HVAC export –
(b) MVAC collector with HVDC export (c) MVDC collector with HVDC export (d) MVDC collector
and direct export
. MVDC can also
be used directly couple battery storage with
renewable generators, providing efficiency gains
over traditional connection.3.6% reach
around 480 2030. Offshore wind, which
accounted for capacity the end of
2023, forecast grow CAGR 28% to
make 380 capacity 2030 [38]. directly
connecting energy storage the medium voltage
level, MVDC technology can allow BESS systems
to provide services such frequency control/
management and black start capability more
efficiently and without requiring transformers and
other AC-specific equipment.30
The MVDC grid
to grow dramatically over the coming decade:
installed capacity was 945 2023 and is
projected grow CAGR 6. MVDC
collectors would require either DC-generating wind
turbines AC-DC converter each turbine.7% reach 109 2030 [7].
Indicative voltage levels are based existing AC
wind farms and proposed designs.
As shown Figure 3-3, MVDC technology may
even eliminate the need for offshore conversion
stations, thereby reducing the cost and complexity
in the rollout offshore wind projects.
3. The global installed
capacity utility-scale battery storage was GW
in 2023 and projected grow with CAGR of
22.3 Battery storage
MVDC directly applicable large-scale battery
energy storage system (BESS) projects
