Each 50 kW Multiaxis Turbosystem (MAT) Section
Projected Mass Production Cost
(2 MW per project minimum)
Rate of return on mass production at 7.5 cents kWh before leveraged financing of 8 % interest and 65 % loan
Class 4 (13 mph wind at 30 feet) = 12.6 % New York
Class 5 (13.5 mph wind at 30 feet) = 17.7 % New Hampshire, Maine
Class 6 (15 mph wind at 30 feet) = 25 % California, Colorado
With leveraged financing of 9% interest and 65 % loan ( 12 year repayment of principle is funded from the non cash expense of the 20 year depreciation)
Tax credits and 5 year accelerated depreciation are additional benefits.
ROI leveraged=ROI --- 6% of capital cost
35% equity
Class 4 (13 mph wind at 30 feet) = 19 % New York
Class 5 (13.5 mph wind at 30 feet) = 31 % New Hampshire, Maine
Class 6 (15 mph wind at 30 feet) = 54 % California, Colorado
Brief explanation of cost reduction
The cost reductions are results from improvements in the vertical-axis wind power plant design. For example, the small MAT blades can be mass-produced with many standard and readily available parts. It permit more cost-effective components to be used. The small blades are more resistant to wear than most standard technologies, which require large, custom-finished turbine blades. Using smaller blades is another area of major cost reductions In comparing a 30 foot blade with a three foot blade, the thirty foot blade may have a 100 times the output but it uses 1000 times more material. In addition to the blade cost reductions, there are other innovations leading to more cost reduction. There is cost reduction in eliminating the changing of the configuration and orientation of the wind power unit. As a result, the MAT, more efficiently, gathers the mechanical power of the wind. It also reduces the structural complexity and costs. Another key advantage lies in locating the drive train and generator at the ground level. This allows easier access and reduces vibration stresses. As a result, there is a reduction in maintenance costs. It makes it likely that the MAT units will last longer than standard wind turbines.
Average wind speed may be different 10 percent or more from year to year and the rate of return may be greater or less each year.
Budget Summary using 7.5 cents kWh
Cost of $34,536 wind system and installation
Add projected cost of project development $150 per rated kilowatt
Total project cost (projected) $45,606
Note: In this draft, we have added $150 kW cost for land development. In some cases it may be higher or lower and it is only an estimate. We also added 10 percent of sales maintenance fee for Mass Megawatts which include administrative and royalty expenses.
Revenue Projections
Calculation is based on the following:
Each blade being 42 inches tall and 28 inches wide would generate 21 watts per hour at 12.3 mph at 30 feet. Gearbox and generator losses are included.
21 watts
multiply 8760 hours per year x 8760 hours
subtotal 184 kWh
multiply factor of 2.0 based on
typical Gaussian wind velocity
distribution ( Weibull Distribution) x 2.0
Subtotal 368 kWh
Additional output of 4.5 times based
on saddle ridge augmenter shape tested in Troy
New York wind tunnel x 4.5
Total kilowatt/hours per year
Per blade at site 1656
X 48 blades x 48
Total Kilowatt hour per year
For 50kW rated machine at 12.3 mph 79,488 kWh
X price per kilowatt/hour x 0.075
Total Revenue $5,961
For 13.4 mph ($5,961 x 1.25) $7,452
For 14.1 mph ($6,955 x 1.20) $8,942
Income for 14.1 mph (class 4) 7.5 cents kWh
Revenue $8,942
Less: Expenses
20 year depreciation 2,300
Operation and
Maintenance 894 3,194
Income $5,748 or 12.6% rate of return
Income for (class 5) 7.5 cents kWh
Revenue $11,539
Less: Expenses
20 year depreciation 2,300
Operation and
Maintenance 1,153 3,453
Income $8,086 or 17.7% rate of return
Income for (Class 6) 7.5 cents kWh- New Mexico
Revenue $ 15,349
Less: Expenses
20 year depreciation 2,300
Operation and
Maintenance 1,534 3,834
Income $11,515 or 25% rate of return
Total Capital Cost for one unit-mass production estimate
Structure
Steel $4,000 (steel is subject to market price changes) 10,080 pounds
Galvanizing (add 15cents per pound) $1,500
Shop labor $1,080 (25 minutes x 54 pieces x $40 an hour) actual is less cost
Structural Erection $600 ( 3 hrs per section x 2 sections tilt up x $100 per hour)
Field equipment 500 (Crane and boom trucks –own equipment)
Foundation $2,500
Augmenter poles ($250 x18) $4,500 (18 poles--60 foot H2 utility poles)
Install augmenter poles $1,800 ($100 an hour x18 poles)
Cables and Wire (for supports and augmenter) 3,500 feet of 3/8 cable x 40 cent a foot $1,400
Augmenter (canvas and labor cost) $2,100
Turnbuckles and related equipment $300
$20,280
Mechanical (Cost are estimates based on items purchased in bulk of 1000 items or greater.)
Turbine blades $2,880 ($60 per blade x 48 blades)
Bearings 546 (78 Pillow Block bearings x$7)
Couplings 546 (78 Couplings x $9)
Fabreeka 500
Gearboxes $3,132 cat# M072290banu6 David Brown Co.
$7,604
Electrical (Cost are estimates based on items purchased in bulk of 1000 items or greater.)
Generators $1552 (1750 230/460 3PH AC)
(Cat# U10e2dc0--US Motors Company)
Brakes $ 2400 (cat# 364964 --US Motors Company) Control box $1,000 ($6,000 includes tach relay system use by several units)
Wiring 900 per 50 kW section of the 2MW unit
Labor 800 per 50kW section of the 2MW unit
$6,652
Total (Cost of 50kW single unit) $34,536
Miscellaneous 2,000
Sales commission (6 percent) 1,570
Add projected land development cost 7,500
Total: $45,606
