| RSS Web Feed for Renewable Energy UK |  | REUK Shop | Directory | Bookmark Site | About Us  

LeWL Wind Logger



LeWL Wind Logger

Find out more about the Logic Energy Wind Logger

wind | general
Printer Friendly Version Print Article     

As we discussed in our article Survey Wind Speed at Turbine Site, it is vital to accurately measure wind speeds over a course of weeks and months at any site where a wind turbine is to be installed.

three cup anemometer for measuring wind speeds

An anemometer is a device used to measure the wind speed at any instant. For that information to be of any real use, readings much be taken at regular fixed intervals and stored in order that average wind speeds, peak wind speeds, and so on can be calculated, and the suitability of a location for a wind turbine to be determined.

LeWL Wind Logger

The LeWL Wind Logger is a new wind speed logger from Scottish company Logic Energy. With its sealed (IP65) case, and ultra low power consumption, this logger is ideally suited for use in even the most remote locations to collect wind speed data for later analysis.

LeWL wind speed logger from Logic Energy

LeWL has two sensor inputs - one analogue and two digital channels. Therefore data from two anemometers can be collected at the same time as recording the wind direction. Where the logger is used at a site with an already installed wind turbine, one of the digital channels can be connected to an SO pulse output kWh export meter so that accurate power curves and performance checkups of the wind turbine can be undertaken.

Integrating LeWL with a wind sensor and the output from a kWh meter
Readings can be taken automatically every 10 seconds, 1 minute, or 10 minutes (user-specified interval). Thanks to the internal real time clock, the stored data (saved in CSV ASCII format) is archived into monthly or daily files for ease of analysis later. Data is stored on a removable SD/MMC flash memory card - and just one 512 MB card would be sufficient to store 25 years of collected data logging at one minute intervals!

When downloaded to a computer, the collected data file can be opened straight into a spreadsheet for analysis as shown below:

Data collected by wind logger downloaded and put into an Excel spreadsheet

If wind direction input is used a potentiometer type wind direction sensor is required. The LeWL has 16 wind direction bins - therefore it will store the highest wind direction incidence as N, NNW, NW, WNW, W... etc. All wind speed and direction readings are stored with a date and time stamp, and average and maximum wind speeds are also logged. Stored data can be analysed and processed with any spreadsheet application.
LeWL wind logger connections

The LeWL has a serial port* to interface with a PC in order to download data or setup the logger. LeWL is fully compatible with any USB-RS232 converter enabling easy connection to any PC with a USB port.
*RS232 serial connection was chosen rather than USB to keep power consumption to a minimum and to enable the logger to work standalone for extended periods of time on one set of batteries.

Additional LeWL Technical Specifications

LeWL has an operating temperature range of -15 degrees C to +50 degrees C. One set of good quality alkaline 1.5V C size batteries will power the logger for up to 1 year (with a 1+ minute logging interval). Including batteries LeWL weighs in at 450g and is just 160 x 80 x 55mm in size. LeWL also features a built in PCB mounted temperature sensor.

For more information click here to view the LeWL installation and user guide from the Wind Logger website.

Buy an LeWL Wind Logger

The LeWL is available for £169+VAT direct from the manufacturers Logic Energy in Glasgow, Scotland. This price includes the LeWL stand alone wind logger with waterproof IP65 enclosure, a 3 cup anemometer, memory card, and two C-type batteries.
Article Last Modified: 14:07, 28th Jan 2009

Comment on this Article

If you have any comments on this article, please email them to neil@reuk.co.uk.


Recommended Related Articles

People who read this article also enjoyed the following articles:

Wind Turbine Charge Controller
Buy a charge controller for a wind turbine generator
Article Last Modified: 15:46, 3rd Dec 2008
wind | electronics | shopping

Dynamo Hubs For Wind Turbines
Dynamo Hubs and bottle dynamos for use in small DIY wind turbine generators
Article Last Modified: 12:18, 11th Apr 2009
wind | electronics

Free VAWT Wind Turbine Plans
Make your own 250 Watt vertical axis wind turbine (VAWT)
Article Last Modified: 14:47, 17th Feb 2009
wind | education

Buy a VAWT Vertical Wind Turbine
Understand the advantages and disadvantages of VAWTs
Article Last Modified: 09:06, 10th Jul 2008
wind

Power Predictor from Better Generation
Find out about the new Power Predictor from Better Generation - solar and wind power data logger
Article Last Modified: 09:16, 14th Aug 2009
wind | solar | general | shopping

Immersion Heater Elements for Wind Turbines
Details of a range of immersion heater elements designed for use with wind turbine generators
Article Last Modified: 08:19, 22nd Dec 2008
wind | heating | water

How I Built A Wind Turbine
Read how a wind turbine was built for under US$150
Article Last Modified: 15:16, 19th Aug 2008
wind | education

Air X Wind Turbine
The Air-X Wind Turbine Generator
Article Last Modified: 13:11, 1st Aug 2008
wind | general

Build a Savonius Wind Turbine
Find out how to build a simple DIY Savonius type VAWT
Article Last Modified: 12:31, 23rd Jul 2008
wind

Wind Turbine Water Heating
Heat water directly using a wind turbine generator (with or without a battery bank)
Article Last Modified: 13:21, 4th Sep 2008
wind | heating | water

© 2006-2009 REUK - All Rights Reserved
Page Last Updated on 20th November 2009 at 04:38:13pm

Latest
Articles


Energy Saving and Recycling in the Office
Guide to saving energy and recycling in the office
energy efficiency
16:38, 20th Nov 2009

Lamina Sol MR16 LED Spotlight Review
Review of Lamina Sol MR16 energy efficient LED spotlights
lighting
14:38, 20th Nov 2009

Freeloader Pico
Buy the new economical Freeloader Pico solar charger
solar
14:37, 19th Nov 2009

Direct Solar Water Heating System
Find out how to put together a simple and cost effective direct solar water heating system
solar
09:25, 16th Nov 2009

Ways to Save Electricity
Find out how you can save electricity in your home - help the environment and save money.
energy efficiency
11:39, 14th Nov 2009

Saving Energy to Reduce Carbon Emissions
Increasing energy efficiency is the cheapest way to reduce carbon emissions
energy efficiency
14:51, 11th Nov 2009

Drying Clothes Indoors
Tips on drying clothes indoors without a tumble drier
energy efficiency
15:57, 29th Oct 2009

Google Powermeter
Google Powermeter - an online tool to track your home or office electricity consumption in real time online
energy efficiency
13:23, 29th Oct 2009



REUK Shop

Popular Items


REUK SUPER TIMER
User programmable 12V powered 10A rated repeating relay timer. 1 second to 99 hours ON and OFF times
£19.99 each.
Complete Circuits



SOLAR PUMP CONTROLLER WITH RELAY
Solar water heating system microprocessor controlled circuit with fitted 10A relay
£25.99 each.
Complete Circuits



12 VOLT 5 WATT SOLAR PANEL
Waterproof 12 Volt 5 Watt Solar Panel with aluminium frame - 290mm x 205mm x 17mm with fitted 5m leads
£33.99 each.
Solar Power



300 WATT POWER INVERTER
Convert 12V DC battery power into 230 AC to power portable televisions, computers, video recorders etc. 300 Watt power rating - peak power 600 Watts
£29.99 each.
Renewable Energy System Parts



CONVERTED PROGRAMMABLE DIGITAL TIMER RELAY
Mains powered programmable timer converted to low voltage with relay board
£21.99 each.
Renewable Energy System Parts



12 VOLT REGULATOR
Supply a fixed 12.0 Volt DC to your devices (up to 1 Amp output)
£4.99 each.
Complete Circuits



MR16 CERAMIC BULB HOLDER
Bulb holder for 12 Volt LED spotlight bulbs
£1.39 each.
Energy Efficient Lighting