"We have to demonstrate to the regulator that this is in the best interests of the Nova Scotia Power customers across the province," Richardson said.

He said the utility would not raise power rates to pass on the cost to homeowners. There are separate billing plans for street-light owners, LED light he said.

Dexter said later at Province House that it would be up to the review board to decide whether there would be any effect on ratepayers.LED Ceiling Light He said factors would include the amortization rate and how quickly the capital cost would be included in the five-year transition period.

"The saving would go into the rate case each year as well, so they don’t get to take advantage of the savings and put the capital in (the rate) — both the savings and the cost become part of what the rate base is,"LED flood light the premier said.

Liberal environment critic Andrew Younger said he doesn’t see any reason for ratepayers to be affected, since the province leases most of the street lights. He said the government could keep paying the same lease cost, and the savings from less power use would cover the capital cost.
In a material with a frequency-dependent refractive index, each frequency propagates with a different phase velocity,LED spot light thereby modifying the nature of the interference. If n(ω) varies linearly with frequency ω, the effect of the modified interference is to shift the peak of the pulse in time, but with the pulse shape staying the same. The fact that the pulse is temporally shifted implies that it is traveling with a velocity different from the phase velocity.LED strip light This new velocity is known as the group velocity and is defined as:
where ωc is the central frequency and ng is the group index of the material. We see that ng differs from the phase index by a term that depends on the dispersion dn/dω of the refractive index.LED tube light For slow light, which occurs for ng >1, the point of constructive interference occurs at a later time. For fast light, which occurs for ng <1, it occurs at an earlier time.

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