Renewable Energy Systems
Español 
Call Toll Free 1-877-964-4188 
Home | Turnkey Systems Contact Us  
Products
solar panels Solar Panels
Wind Power Wind Power
RV/Marine Solar RV/Marine Solar
Module Racks Module Racks
Inverters Power Inverters
Water Pumping Water Pumping
pool pumping Pool Pumping
Batteries
Lighting
cathodic protection Cathodic Protection
Efficient Appliances
Electrical Accessories
charge controllers Charge Regulators
battery meters Meters
Evaporative Coolers
discounts Clearance!

Dependable Solar Inc.
Website for Turnkey Solar Solutions in Arizona
ETA Engineering, Inc.
4049 E. Presidio St., Suite 117
Mesa, AZ 85215
Phone: 480-966-1380
Toll Free: 1-877-964-4188
Fax: 1-480-966-1516
info@etaengineering.com
Solar Association Arizona Solar Energy Association
Solar Center Arizona Solar Center
Wind American Wind Energy Association
Hydrogen American Hydrogen Association
Phoenix Electric Auto Association
Green Building Scottsdale Green Building Program
Note: Prices are subject to change without notice due to changes in other vendors' prices to us. These changes may arise from normal product development plus fluctuations in foreign exchange rates and commodity prices.

Frequently asked questions (FAQ).

Inverters for Wind Power Systems

For all Wind Power Systems we use the Windy Boy inverter by SMA, makers of the world renowned Sunny Boy inverter for solar grid-tie systems. For Wind Power Grid-Tie Systems, we use Southwest Windpower's Whisper Link controller connected to a Windyboy.

To see what other wind generators will function with a Windy Boy power inverter, check SMA's website here.
Windy Boy 1800U & 2500U
This new inverter is the same hardware as the SMA Sunny Boy Inverters with a modified software package that allows it to be connected to a wind turbine. The new UL listing on the SMA inverters allows direct grid interconnection without having to use a cumbersome system involving batteries. The result is a typical net increase in energy production of 50% at the same efficiency as you have come to expect from the Sunny Boy Inverters. SMA's stringing technology also makes system expansion simple. SMA inverters have several communication options available including remote capabilities and computer connection.

 

Windy Boy 1800U Technical Data

Input Values (120V)
Recommended max PV Power PPV 2000 to 2200 Wp STC
Max DC Power PDC, max 1800 Wp PTC
Max DC Voltage VDC, max 400 Vdc
PV Voltage range, MPP VPV 139V to 400V
Max input current IPV, max 12.6 A
DC Voltage ripple VPP < 10%
DC Disconnectors   Optional external DC Disconnect/Breaker
Pole confusion protection   Short Circuit diode
Ground fault protection IDif > 1000 mA

Output Values (120V)
Max AC Power PAC 1800 W
Total Harmonic Distortion THDIAC < 4% (With KVgrid < 2% and PAC > 0.5 PACnom)
Operating Range, Grid Voltage VAC 106 V to 132 V
Operating Range, Grid Frequency fAC 59.3 Hz - 60.5 Hz
Phase Shift (Ref. Fundamental) cos(phi) 0°

Output Protection
Islanding Protection   VAC; fAC in accordance with UL 1741
Ground Fault Protection   IDIF; In accordance with UL 1741
AC Disconnect   External AC Breaker
Short Circuit Protection   Current Controlled
Overvoltage Classification   III

Efficiency
Peak Efficiency   94 % (Rebate Efficiency)

Power Consumption
Internal consumption in operation   < 0.1 W
Internal consumption at night   0 W

American Standards
Hardware Safety   UL 1741
Firmware Safely   UL 1998
Power Quality   IEEE 519
Anti-Islanding   IEEE 929
Surge Testing   ANSI C62.41, C1 & C3
Electro-Magnetic Interference   FCC Part 15 A & B

European Standards
EMC   EN 50081,T.1 & EN 50082,T.1
Grid Interference   EN 61000-3-2
Grid Monitoring   DIN VDE 126
Low-Voltage regulation   EN 50178
CE Conformity   EN 60146, Teil 1-1

Size and Weight
Width   434 mm
Height   295 mm
Depth   214 mm
Weight   ca. 27 kg

Enclosure Ratings
DIN EN 60529   IP 65
NEMA Rating   NEMA 4X

Ambient Conditions
Ambient Temperature Range   -13°F to +140°F or -25°C to +60°C
Relative Humidity Level   0 to 100%
Resources | Glossary | Site Directory | About ETA | FAQ  
©2001-2008 ETA Engineering, Inc. All rights reserved. Last updated: January 17, 2008