Solar & Wind Off-Grid Power

hybrid wind and solar system from Leading Edge provides off-grid power 24/7. 

Choose from the PowerBox and SolarBox self-contained units or contact us with your specific requirements and our friendly, off-grid experts would be happy to put together a bespoke battery-charging system comprising our own British-made wind turbines, high efficiency yet compact solar panels and hard-working batteries.

Alternatively, tell us your off-grid requirements with details about the power load and proposed location and we will come back with a recommendation.

solar wind turbine off-grid powerWhen choosing the power source for an off-grid system, a combination of two or more is recommended. In recent years, solar PV has become inexpensive and wind generators more and more reliable. At Leading Edge, we have a range of vertical and horizontal axis small wind turbines and can advise on the best product for the location you have in mind.

Why choose a Hybrid solution?

Solar and wind are excellent partners. During the summer, solar irradiation is high and provides the bulk of the power required.  In the winter because solar doesn’t perform so well with the shorter days and often cloudier weather, wind turbines make a valuable contribution as it’s windier at this time of year. 

Compared to a solar only system, the wind/solar hybrid system helps to prolong battery life by reducing the depth of discharge overnight.  As batteries are often a significant part of the cost of an off-grid power system, this is very important.

Wind plays a particularly important role in locations above a latitude of 55oN as solar levels are less than 10% of their summer peak. At these latitudes the sun is low in the sky during the winter so solar panels need to be installed at an angle of 45% to capture as much energy as possible.

There are two main types of solar panels available: monocrystalline and polycrystalline.

In general, monocrystalline solar panels are preferred for their higher efficiency – a greater ability to convert the sun’s energy into power. The SunPower monocrystalline cells are also able to produce more power in low or variable light conditions, such as cloudy days when power input will be reduced so extracting as much energy in these conditions is critical. For installations where space is limited, the monocrystalline panels will deliver the same power on a smaller footprint.

Where the off-grid system is mission critical and the power loads are high, a generator or the greener equivalent, methanol fuel cells, are great back-ups. Solar and wind provide the bulk of the power with fuel cells kicking in when batteries reach a pre-defined level of discharge. However, the operating costs are high (not just the cost of the fuel but this requires on-site visits to refuel). 

Contact us to discuss your specific requirements and we would be happy to put together a bespoke off-grid power system. Alternatively, tell us your off-grid requirements with details about the power load and proposed location and we will come back with a recommendation.