tag:blogger.com,1999:blog-8932024.post116515422651801990..comments2023-06-18T14:28:19.967+00:00Comments on Shades of Grey- retired: The winds of changeShadeshttp://www.blogger.com/profile/07777836927500400430noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-8932024.post-1165257240857470862006-12-04T18:34:00.000+00:002006-12-04T18:34:00.000+00:00I was going to do an NPV (Net Present Value) calcu...I was going to do an NPV (Net Present Value) calculation where it is assumed that you have the money already but don't spend it and use it to get interest, a figure that also dints the business case.<BR/><BR/>However, we are simple Yorkshire folk here in my regular audience!<BR/><BR/>As an aside, the Windsave WS1000 Plug 'n Save (tm) is actually £1,498 so there is another three quid to find...<BR/><BR/>NPVShadeshttps://www.blogger.com/profile/07777836927500400430noreply@blogger.comtag:blogger.com,1999:blog-8932024.post-1165219855708425172006-12-04T08:10:00.000+00:002006-12-04T08:10:00.000+00:00You failed to include the time value of money. If ...You failed to include the time value of money. If you borrowed that £1,495 at a rate of 5%, then you would need to pay around £200 per year to repay it. So it just about breaks even.<BR/><BR/>It is still at the level of a gimmick, and prices need to come down significantly to make it a real option.Serfhttps://www.blogger.com/profile/03298915724856708344noreply@blogger.com