Simulations & Forecasts

We perform simulations of wind turbines by a computer-aided model which imitates a specific location (software WindPRO, Wasp).

We make forecasts on the output of turbines and the economic indicators considering the location of the site, the local terrain and the landscape, as well as with adjustments considering the newest statistics of wind speed and direction monitoring.

We also model the shadow flickering and the noise (which determines the Sanitary Protection Zone).

Forecasts on wind farm activities

If you are considering the possibility to have a wind farm

Suppose, YOU have an agricultural land parcel of 6.5 hectares and you are interested in a possibility to contribute to the development of the wind energy sector.

Land parcel (yellow rectangle)

First, we recommend you to make YOUR OWN visual assessment of the site: Are there some buildings (houses, structures, etc.) in the site? Does the site neighbour a forest or is a forest closer than at a distance of 100 metres? Are a visible hill, a river or a reservation (if you have such information) located in the neighbourhood of the site?

If the said objects are not located in the site or in its vicinity, then the site MAY BE ELIGIBLE.

Another important factor is connection to the power grid of the Republic of Lithuania. Wind farms of a capacity of up to 250 kW would be connected to power grids of 10 kV or 35 kV. If you see/know that a high voltage LINE is located at a distance of one or two kilometres from your site, then, by preliminary estimations, YOUR site is ELIGIBLE and it is worth to make a more detailed assessment.

Specialists of NEW ENERGY GROUP make eligibility assessments of sites for construction of wind farms.

Our receptionist will verify the correctness of your data against the actual situation and will determine the exact shape and position of the site. These data will be submitted to the Department for Wind Farm Planning; here the site will be marked on a detailed aerial picture of the location and included into the computer-aided model of Lithuanian landscape and climate conditions.

The site in the computer-aided model; ORTOFOTO

Measurement of the distances to the closest objects is important in wind energy planning, as well as the distance from your site to the closest possible point of connection to the power grid.

Distance to the power grid

Based on the annual climate monitoring performed in the relevant region (wind speed and direction, air temperature), the model performs calculations, and a wind atlas of YOUR site is drawn. The optimal number of wind turbines and the layout of the wind farm are selected considering the size of your site, the wind data, the terrain specifics, as well as the noise and shadows of wind turbines.

Based on the German experience, it is deemed that the shadow of a wind turbine is allowed to fall on residential territories only up to 30 hours per year. Following this principle, the shadow map is drawn up for the WORST SCENARIO, i. e. when the sun shines every day for the entire year (no clouds whatsoever).

The shadows in case of the worst scenario and the Sanitary Protection Zone

The red circles around the wind turbines in the picture show the standard case of the biggest distance the noise of the wind turbine (which works at its maximum capacity) can travel before the sound drops to the allowed level (55 dB in the vicinity of residential and public buildings). When the turbines are relatively close to each other, their noise adds up and can exceed the typical limits.

Noise (blue line)

First, the specialists of NEW ENERGY GROUP make their conclusions. Then, we agree on the time, convenient for you, for a visit of our authorised representative with the purpose to present our forecasts.