Unmetered supplies

Synergy provides unmetered supplies (UMS) to local government authorities, government agencies and approved providers of specialised services in Western Australia within the South West Interconnected System (SWIS). Unmetered supply connections apply to traffic signals, streetlights, signs, railway crossing boom gates, bus shelters, telephone boxes, etc.

All unmetered supplies are installed by Western Power. For new unmetered supply applications, to report a problem or to relocate, remove and modify an existing streetlight please visit the Western Power website.

Synergy Street Lighting (Z) tariffs

Tariff	Wattage	Lamp type	Midnight switch off (M)*	1.15am switch off (A)*	Dawn switch off (C)*
Street lighting on current offer and for existing services *All prices quoted in cents per day (inclusive of GST) and are subject to change.
Z.18	per kW	Auxillary lighting in public places	203.33	214.63	259.09
Suburban Eco	42	Compact fluorescent	35.88	36.68	39.71
Bourke Hill	42	Compact fluorescent	37.65	38.45	41.48
Kensington	42	Compact fluorescent	41.45	42.25	45.28
Z.87
Suburban Eco	42	Compact fluorescent	35.88	36.68	39.71
Bourke Hill	42	Compact fluorescent	37.65	38.45	41.48
Kensington	42	Compact fluorescent	41.45	42.25	45.28
Z.13	150	High pressure sodium	47.87	49.63	59.46
Z.15	250	High pressure sodium	70.97	74.76	89.35
Z.01	50	Mercury vapour	34.70	35.44	38.13
Z.02	80	Mercury vapour	40.86	41.78	45.96
Z.03	125	Mercury vapour	50.54	52.18	58.09
Z.07	250	Mercury vapour	62.72	65.91	77.81
Z.10	400	Mercury vapour	92.91	97.77	116.35
Z.20	70	Metal halide	74.59	76.87	85.12
Z.21	150	Metal halide	94.92	99.70	117.61
Z.22	250	Metal halide	108.93	116.79	146.73
Street lighting for existing services only (tariffs within this section are being phased out over time)
Z.51	60	Incandescent	34.70	35.44	38.13
Z.52	100	Incandescent	34.70	35.44	38.13
Z.53	200	Incandescent	40.86	41.78	45.96
Z.54	300	Incandescent	50.54	52.18	58.09
Z.55	500	Incandescent	81.27	84.45	96.37
Z.56	40	Fluorescent	34.70	35.44	38.13
Z.57	80	Fluorescent	40.86	41.78	45.96
Z.58	160	Fluorescent	57.16	57.95	67.24
Z.04	140	Low pressure sodium	51.72	53.41	60.20
Z.19, Z.62, Z.70, Z.77, Z.85	70	Low pressure sodium	N/A	N/A	47.82
Z.14	150	Low pressure sodium	73.86	75.58	85.38
Z.63, Z.71, Z.78	150	Low pressure sodium	N/A	N/A	59.46
Z.64, Z.72, Z.79	250	Low pressure sodium	N/A	N/A	89.35
Z.16	250	High pressure sodium 50 % E.C. cost	84.87	88.69	103.24
Z.17	250	High pressure sodium 100 % E.C. cost	98.73	102.60	117.17
Z.60, Z.68, Z.83	80	Mercury vapour	N/A	N/A	45.97
Z.61, Z.69, Z.76, Z.84	125	Mercury vapour	N/A	N/A	58.09
Z.05	250	Mercury vapour	81.27	84.45	96.37
Z.06	400	Mercury vapour	111.48	116.35	134.84
Z.08	250	Mercury vapour 50 % E.C. cost	71.99	75.13	87.08
Z.11	400	Mercury vapour 50 % E.C. cost	102.20	107.08	125.58
Z.09	250	Mercury vapour 100 % E.C. cost	81.27	84.45	96.37
ZE12	400	Mercury vapour 100 % E.C. cost	111.48	116.35	134.84
Z.65, Z.73, Z.80, Z.86	70	Metal halide	N/A	N/A	85.12
Z.66, Z.74, Z.81	150	Metal halide	N/A	N/A	117.61
Z.67, Z.75, Z.82	250	Metal halide	N/A	N/A	146.73

These prices apply as of 1 July 2011.

Synergy Traffic Light (W1) tariff

Price quoted is inclusive of GST and is subject to change
Tariff	Charge	Effective 1 July 2011
W1	Electricity charge - dollars per day of kW of installed wattage	4.39

Synergy Other Unmetered Supplies

Price quoted is inclusive of GST and is subject to change
Fee	Charge	Effective 1 July 2011
Standard Railway Crossing Lights	Supply charge - cents per day	67.02

Please note for billing purposes, we calculate our prices to four decimal places.

Lighting definitions

Compact Fluorescent (CFL)

The new 42W CFL streetlight technology has a key focus on energy efficiency and to help lower greenhouse gas emissions. These lights have been found to be reliable and technically compatible for wide-spread installation, as an energy efficient replacement for the 80W Mercury vapour (MV).

High-pressure sodium (HPS)

A high-intensity discharge lamp, which uses sodium vapour in a high-pressure arc tube as the primary light-producing element. HPS lamps produce a golden yellow light. The typical useful life of the lamp is 14,000 hours. With an efficacy of 100 lumens per watt, the HPS lamp is a cost effective light source.

Mercury vapour (MV)

Mercury high-intensity discharge lamps use mercury as the primary light-producing element. Although this lamp produces a white light, its colour rendering ability is minimal. The typical average useful life of the lamp is 12,000 hours (similar to that of a HPS lamp). The efficacy of the mercury vapour lamp is 55 lumens per watt.

Metal hallide (MH)

A high-intensity discharge lamp that uses mercury and halide additives as light producing elements. Metal halide lamps provide excellent colour rendering, producing a crisp, blue/white tone light. With a typical useful life of 8,000 hours (approximately half that of HPS or MV lamps), the running costs can be higher than other lamp alternatives. Metal halide lamps have an efficacy of 80 lumens per watt.