In the report, Leidos has made a number of recommendations. They include:
- Setting the upper limit of renewable DG, to a maximum of 4.15 MW in Providenciales and 0.34 MW in Grand Turk.
- Setting infusion of renewables on each distribution feeder to no more than the feeder minimum load to avoid system voltage issues.
- Prohibit DG on Grace Bay feeder five because of its impact on operating voltages, unless there are additional system upgrades or improvements.
The study went on to reveal that it is possible to achieve higher DG penetration, but only with significant investment and upgrades. The report read, “additional analysis is recommended to confirm technically and economically: 1) Altering the generation dispatch and (or) increasing the spinning reserve to provide more margin for system contingencies with DG. 2) Add substation and (or) line regulation to provide more voltage control of the T&D system and take advantage of the available capacity.” Additionally, according to Leidos all DG installations should follow already established international interconnection standards set by professional associations such as, The Institute of Electrical and Electronics Engineers (IEEE). Suggested standards include; IEEE 1547, IEEE 929 and UL1741.
Notes to Editors:
1) FortisTCI Limited (FTCI) became a wholly owned subsidiary of Fortis Inc. located in Newfoundland, Canada in August 2006. Turks and Caicos Utility Limited (TCU), which is the sole provider of electricity on the Islands of Grand Turk and Salt Cay, was acquired by FTCI in August 2012. FTCI is the sole provider of electricity in Providenciales, North Caicos, Middle Caicos, East Caicos and adjacent Cays, and South Caicos. Together the two companies serve approximately 13,000 electricity customers in the Turks & Caicos Islands. The Utilities have an aggregate diesel-fired generating capacity of approximately 75 megawatts. Additional information on FortisTCI can be accessed at www.fortistci.com.
2) Fortis is the largest investor-owned distribution utility in Canada, with total assets approaching $25 billion and fiscal 2013 revenue exceeding $4 billion. Its regulated utilities account for approximately 93% of total assets and serve more than 3 million customers across Canada and in the United States and the Caribbean. Fortis owns non-regulated hydroelectric generation assets in Canada, Belize and Upstate New York. The Corporation's non-utility investment is comprised of hotels and commercial real estate in Canada. For more information, visit www.fortisinc.com or www.sedar.com.
VP, Customer & Corporate Services
Tel: 649-946-4313 Ext. 2507