Oct 8, 2017

Notre nouvelle génération d'éoliennes

SVP prenez deux minutes pour regarder ce que nous pensons être la prochaine génération d'éoliennes.

Dans cette vue à  1 Km vous ne pouvez pas vraiment voir l'éolienne, Suivez la flèche bleue.

A 500 mètres (1,650 pi.) notre éolienne ne crée pas de nuisance visuelle ou sonore:

Vous avez encore de la difficulté à la voire? Voici une autre vue :

Nous prétendons qu'à 300 mètres nous n'aurons jamais de plainte de résident. Nous allons tenter de vérifier cette affirmation en interrogeant quelques milliers de personnes dans diverses villes.

A 200 mètres vous allez distinguer quelques détails de la structure, toujours pas de bruit :

Personne n'a remarqué que le ciel était bleu? Nos éoliennes seront peintes en bleu pastel pour être encore plus discrètes.

Cette photo prise en usine donne une meilleure idée de la géométrie de notre éolienne de 20 KW:

N'hésitez pas à nous proposer votre région pour une démonstration. 

Plus d'information sur notre site web:  www.wind-do.com
Contact: pierre.dumas@wind-do.com

Sep 10, 2017

Our next generation wind turbine

Please take two minutes to see what we claim to be the next generation of wind turbines:

We have to add an arrow because you hardly see our wind turbine at 1 Km.
At 500 meters (1,650 ft.) our wind turbines simply have no noise and visual disturbances:

Still hard to see? Here is another view at 500 m:

We propose that at 300 m. our wind turbines will not bother people. We will verify that with potentially thousands of citizens in several cities:

At 200 m. you start to notice some details of the structure, still no noise:

Anybody notice that the sky is blue? Our wind turbine will be painted in light blue to be more discreet:

To have a better look, here is a factory picture:

Do not hesitate to propose your region for a live demonstration. 

Follow us on our web site:  www.wind-do.com
Contact: info@wind-do.com

Jan 17, 2017


Despite rapidly changing prices for solar photovoltaic energy, new wind power installations remain the most cost-effective source of clean electricity. With production costs (excluding subsidies) varying between $ 33 and $ 77 / MWh, wind is often the most economical of all sources of electricity.

Two problems remain:

1- The intermittency of wind electricity production.
2- Many other sources of greenhouse gas emissions are inadequately accessible to clean energy. (Air or sea transport, cement production, etc.) The heating of houses and buildings, which is mostly produced by combustion, is an easy target for wind energy.

With very economical wind energy, these two problems can be work out together.

Historically, all the energy produced by wind turbines must be sold at high prices to ensure the profitability of a farm. This business model is represented by the first graphic of the attached image where we have a wind farm that delivers electricity to the grid with a yield of 30 to 40% of its nominal capacity. If the cost of producing electricity is $ 40 / MWh, a sale price of $ 50 is likely.

In the second graph, we reduce the power of the grid connection to deliver only 75% of the electricity produced. For example, a wind farm with a nominal power of 100 MW would only have a connection of 40 to 50 MW with the network, in this way the yield offered could reach 50 to 70% of the nominal capacity. 

There are three important advantages to the network:

1- A connection of 50 MW is less expensive to install, and its utilization rate is doubled, which give a significant reduction costs of the interconnection.

2- The power density offered is higher; the need for ancillary services and its          associated costs is greatly reduced. 

3- A larger clean power density will allow network operators to achieve more easily their greenhouse gas reduction targets.

Various business models can be associated with this electricity generation structure.

a)    If the upper part of the electricity production (in green) is not used, the cost of producing electricity sold to the grid increases from $ 40 to $ 53 / MWh, and the selling price must be around $63  / MWh. It is therefore necessary that the electric operator grants a value of more than $ 13 / MWh to the three advantages mentioned above.

b)    Some of the electricity surplus could be stored in batteries and sold to the grid at peak times. For example, electricity could be available to the system at $ 75 / MWh at peak hours and at $ 57 for the rest of the day. An interesting alternative for the electric operator that would have an availability of 70 to 90% at peak hours. The value of the electricity stored would present a cost-effective business model for the use of batteries.

c)    Another solution would be to use locally the electricity that is not delivered to the grid. The easiest way to store these peaks of energy would be to turn them into heat.

We can decide that the value of electricity transformed into heat is $ 15 / MWh, which would allow, with an efficient heat storage system, to offer heating at $ 25 / MWh, a very competitive price. If this heating system replaces a gas one, a carbon credit of $ 10 / T of CO2 would result in a cost reduction of $ 6 / MWh, and a $ 50 / T of CO2 credit would result in zero heating costs.

By giving a value of $ 15 / MWh to electricity surplus, we reduce the increasing of the cost of electricity delivered to the grid. The cost reach now $ 48 / MWh and the selling price may be $ 58. A win / win solution.

To achieve and eventually exceed our greenhouse gas reduction targets, overcapacity of wind power generation must be achieved, which should lead to the diversification of the use of clean energy.

For the wind, the cost reduction is not finish. Our goals in the fight against climate change are still achievable and wind power will count for a lot of.

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Wind-Do will propose clean energy cheaper that fossil one.