On Jun 14, 7:30*pm, Tim Lamb wrote:
In message , "dennis@home"
writes







"Man at B&Q" wrote in message
...
On Jun 14, 12:03 pm, Jim K wrote:
On Jun 14, 10:51 am, The Natural Philosopher
wrote:

8

interesting calculator he-

http://www.solaressence.co.uk/pv-pri...ff-payback-cal....

you can tweak all their assumptions and play around with it all (e.g.
correct their 80% panel efficiency after 30 years "assumption"), lower
their 9% p.a. elec. inflation figure

in fact just lowering that to 4.5% (say, still 1% above their RPI
figure) reduced the overall benefit to 5.9% AER over 25years on a 4kw
system - also I can't see any allowances in there for new inverters
(£???), cleaning, insurance, repairs, accidents and other risks on the
"purchase"...

mmmm anyone care to comment?

Jim K

It's all very well saying you will get x% return for 25 years, but do
you get your capital back at the end? No.

You get an income for 25 years equal to about 2.5 times your initial
investment.
You may get additional income at a lower rate after 25 years.

Yebbut.

UK inflation is currently an annual 4.5%. There have been times over the
last 40 years when it has been much higher. The currency has devalued by
20% over the last two years.

This is the reverse of how inflation benefits home buyers with a long
mortgage: you are being repaid in currency with a much lower purchasing
power.

regards
--
Tim Lamb- Hide quoted text -

- Show quoted text -

Inflation linked.