Colin wrote:

My calculation is:

15 lights
50W per light
7p/Kw
Lights on 15 hours per day

15 * 50/1000 * 0.07 * 15 * 365 = approx £300 per year running cost. Any
additional under-cupboard lights are extra on top of this, as are
replacement bulbs, etc.

I assume that low voltage downlighters cost the same to run as mains
voltage(?)

Seems a bit steep to light just one room in the house!

[At the moment I have a 60w strip light and a 20W low voltage pendant which
gives adequate (but not sexy) lighting and only a tenth of the running
costs.]

Should I be considering something other than downligters? Is this the cost
of a modern-looking kitchen?

I'll take this opportunity to rant, if you don't mind. This isn't
personal - lots of people do what you are proposing :-)

rant

I really, *really* don't understand this recent obsession with LV
halogens; specifically with using dozens of them to light a room.

When I was growing up, each room had a 60W/100W bulb, and maybe a
reading lamp/desk lamp as well. That was plenty.

Why anyone would need or want 750W to light their kitchen is beyond me.
I totally do not understand it.

Our kitchen makes use of 3x 21W CFs, and we find this more than enough.
Regardless of cost, to use 750W to light one room is *obscene*.

/rant

--
Grunff