The deal will turn in to a firm order following a positive final investment decision on the project, the Spanish-German manufacturer said.
The project will feature 47 SG 8.0-167 direct-drive turbines and construction is expected to take place in 2020.
SGRE will also service the turbines for 20 years. Macquarie and Swancor signed a 20-year power purchase agreement with Taiwanese utility Taipower in December.
Taiwan is becoming a happy hunting ground for the leading offshore wind turbine supplier.
SGRE also supplied the country's first offshore wind capacity, the 8MW Formosa 1 pilot phase installed in 2016, featuring two 4MW turbines.
It is also in the process of installing a further 22 6MW turbines at the 120MW Formosa 1 phase 2, which is due to be completed by the end of 2019.
Elsewhere, SGRE will also supply its 8MW direct-drive model to German developer Wpd's 640MW Yunlin project, which reached financial close at the end of May.
And the company is the preferred supplier for the 900MW of capacity Danish developer Ørsted has secured off Taiwan's coast. A final investment decision on the Greater Changhua 1 & 2 sites was made in April, but a firm order is yet to be confirmed.
If all these orders are realised, SGRE will have installed more than 2GW off Taiwan by 2022.
Foundations and cables
Jan de Nul has been awarded the engineering, procurement, construction and installation contract for Formosa 2’s 47 jacket foundations and its subsea cables.
The offshore services provider has now secured contracts for three offshore wind farms in Taiwanese waters.
It had previously been awarded a contract to provide foundations and cables for Taiwan’s first large-scale offshore wind farm, the 120MW Formosa 1 Phase 2.
The Dutch company is also building the 109.2MW Changhua wind farm in a consortium with Hitachi.