STUCO (Statia Utility Company), was established in 2013 with the aim to supply electricity and water to the island of St.Eustatius Dutch Caribbean.
STUCO was first a part of GEBE and separated December 31st, 2013
The company consists of a board of five members and one shareholder representative, of the Government of the public entity of St.Eustatius.
STUCO utilizes the 127/220 Volt, 60Hz standard common in North America. STUCO supplies electricity from the power plant in Gallows Bay with alternating current (AC) at a frequency of 60Hz.
The voltage in the low voltage system is:
- Nominally 127 Volt between a phase conductor and the neutral conductor.
- Or nominally 220 Volt between the phase conductors together.
The voltage in the high voltage system amounts to nominally 12,600 Volt between the phases.
Recent investment into a solar park have expanded STUCO’s generation capacity in 2016 and another in 2017.
The price of electricity depends on a fixed and variable electricity distribution tariff and KVA.
Electricity is supplied as alternating current (AC) at a frequency of 60Hz.
The existing electrical distribution system on St. Eustatius consists of 12.6-kV. Electricity is transmitted via 12 to 24-kV underground cables to the island via transformer houses throughout the island. In the transformer houses the 12.6-kV current is transformed into 127/220 Volt and transported at this voltage to homes and businesses.
On Statia there is no transmission grid. The transmission grid is the distribution grid. Recent investments have been made to put more high voltage cables underground. This makes the high voltage cables hurricane resilient and enables STUCO to restore power sooner after a storm or hurricane.
Water Distribution & Testing
The Island Government of St. Eustatius turned over all water assets to STUCO to produce and distribute water to the community. The water is produced through three reverse Osmosis Plants. STUCO is currently planning to expand drinking water, production and storage capacity. STUCO’s water is tested at SLS Labs in St.Maarten. The price of water depends on the variable electricity distribution tariff.