- Joined
- Jan 15, 2002
- Professional Status
- Certified General Appraiser
- State
- California
As for the cash flows, it would be hard to get a good read on the trends for energy prices over the lifespan of the install. We can assume they will go up but they might actually go up a lot faster than anyone can imagine. But by the same token the fees attributable to the connectivity of the grid will probably increase, too; and it's *possible* those increases will be at the different rate than the electricity usage itself.
Let's say a grid-connected electric bill for a house is currently $200, of which $50 is for the connectivity fee and the remainder is the actual usage. If the average annual rate of increase over 30 years for the power is 3% but the average rate for connectivity is 4% the higher rate of the latter increase offsets the rate of increase of the former. Whereas the connectivity element started out at 1/3 of the grid-payer's bill it ended up being 44.5% of the bill by the time they got to the end.
These unknown and unknowable future variables are what detract form the utility of this sort of analysis and what render it an alternative of last resort in an appraisal, particularly if there actually are sales data from which to extract the actual reactions of these buyers to this amenity. Regardless of what number the DCF produces it would never outweigh a market-derived adjustment that was actually extracted from comparable sales data - past or present - either from within the subject's market segment or a competing market segment.
Let's say a grid-connected electric bill for a house is currently $200, of which $50 is for the connectivity fee and the remainder is the actual usage. If the average annual rate of increase over 30 years for the power is 3% but the average rate for connectivity is 4% the higher rate of the latter increase offsets the rate of increase of the former. Whereas the connectivity element started out at 1/3 of the grid-payer's bill it ended up being 44.5% of the bill by the time they got to the end.
These unknown and unknowable future variables are what detract form the utility of this sort of analysis and what render it an alternative of last resort in an appraisal, particularly if there actually are sales data from which to extract the actual reactions of these buyers to this amenity. Regardless of what number the DCF produces it would never outweigh a market-derived adjustment that was actually extracted from comparable sales data - past or present - either from within the subject's market segment or a competing market segment.