Solar Holographic Device
Solar Holographic Device
A new solar generation concept
The new solar holographic device SoHo3X is an electricity generator which uses an inexhaustible, sustainable and cheap energy source: the sun. SoHo3X is designed to maximize the use of solar energy by trapping and guiding it wherever whished. It manages to capture more solar radiation than a conventional module both in the early morning and late evening hours.
The integrated holograms perform a passive tracking with no need for additional mechanical elements. Furthermore, they allow solar cell cooling by selecting only the spectral region absorbed by the solar cell, and dissipates heat through highly transmissive elements in the base.
Higher annual solar production
SoHo3X combines three optical elements in one: diffraction through the hologram, reflection through the back reflective surface and total internal reflection (TIR) guiding light through the optical element which covers the device. This novel concept efficiently empowers SoHo3X to capture those sun rays less available to fixed conventional modules, thus increasing the efficiency by concentrating light and guiding it towards the cell. SoHo3X increases a plants annual electricity production in up to 50%.
Modular and versatile
SoHo3X, with its many different applications, intends to make solar generation accessible to any kind of end-user. It is not only addressed to solar farms (utility scale) or rooftops (industrial, commercial or residential), but also to isolated off-grid installations, as well as other off-grid uses such as vacational and recreational (camping, beach, mountain, etc.).
In order to reach all these market segments with only one product, SoHo3X is conceived as a modular device with minimum powers of 20Wp and 40Wp. The devices are easily interconnected to one another, allowing immediate scalability to higher powers.
Building integration (BIPV)
The evident aesthetic disadvantage of conventional modules limits their integration in all those architectural elements other than the traditional tilted roof. Those other BIPV solutions (curtain walls, jalousies, etc.) usually require specifically designed and significantly more expensive modules. With its standard products, SoHo3X offers a de facto building integration.
The base in aluminum has been designed as a self-structured element. The personalization of each device by the customer facilitates an easy integration in the aesthetics of any building. Together with the front sides rainbow appearance, this makes SoHo3X a further decorative element of the construction.
A constant technical exchange with manufacturers and end-users, along with years of research in the worlds solar market have had a good harvest: SoHo3X incorporates numerous technological novelties, making it a unique and versatile product, adaptable to any type of installation.
The base of SoHo3X integrates a self-structured design. This concept incorporates rails which only need simple screws to be fixed to rooftops or vertical walls. The additional weight and cost of a mounting system are thus avoided, and the BoS proportionally reduced. In addition, infinite building integration (BIPV) possibilities are suddenly opened.
At the design stage, the technical team of IHT also took into account the higher soiling expected from a V-shaped structure. To that end, SoHo3X integrates novelties both in the device fixing and in the materials in which it is built. Furthermore, the devices can be cleaned by standard automatic cleaners only by using specific heads.
SoHo3X is built in materials with very high perspectives for technological evolution, cost reduction by scale economies and easy recyclability at the end of their lifetime.
Such is the case of the PMMA used as wave guiding optical medium, guaranteed by internationally recognized manufacturers for up to 30 years.
Also the aluminum in the base not only fulfill their duty as structure and heat sink; they also allow the device to be easily recycled at the end of its lifetime and guarantee its durability.
On top of that, SoHo3X is IEC compatible (IEC in process by AENOR), which warrants the device a good performance in all latitudes.
The modularity of SoHo3X allows to cover a gap detected in the current world market: nowadays, no single product addresses all applications in solar energy. SoHo3X are light, low power, modulable devices, easy to install and interconnect. This also empowers the end-users to reach their desired voltage and current, not those imposed by the manufacturer.
On the other hand, at IHT we are very aware of the savings needed in the BoS of a solar installation. Therefore, we ship pre-assembled devices at higher, currently standard powers under command.
Assembly parts (see section Recommended applications)
Building integration (BIPV) is one of the key challenges of solar energy. Indeed, most energy consumers live in cities, where buildings represent the perfect structural support. A very interesting opportunity in the evolution of urban solar installations is thus created.
Due to its higher energy harvesting by light trapping, SoHo3X can be installed either vertically or horizontally without the big production losses associated to a conventional module in such orientations. This allows to adapt our devices to the most diverse architectural applications by means of specifically designed assembly parts.
The joint use of holograms with other optical elements permits SoHo3X to be independent of the solar cell technology, as the hologram can adjust its spectral response. This fact, together with a cell surface savings of more than 66%, allows the use of cells of higher efficiency than todays standard. Moreover, the filter produced by such spectral response reduces the cells operating temperature, which in turn increases the systems performance.
An additional advantage of using only one third of the cell area is the low carbon footprint produced in the device manufacturing. SoHo3X thus becomes the commercial solar generator most compromised with the environment.
- PV cell technology Monocrystalline silicon cells with 20% efficiency
- Models SoHo3X 20Wp For off-grid, recreational and residential rooftop applications SoHo3X 40Wp For off-grid, rooftop (residential, industrial and commercial) and utility applications
- 12 years at 90%
- 20 years at 80%
- 10 years
- Operating temperature -40ºC / +85ºC
- Aluminium: 2,92 kg / 6.44 lbs
- Aluminium: 5,84 kg / 12.88 lbs
Electrical characteristics (STC):
- Maximum power (Pmax): 20Wp
- MPP voltage (Vmpp): 4,20V
- MPP current (Impp): 4,76A
- Open circuit voltage (Voc): 6,50V
- Short-circuit current (Isc): 5,95A
- Maximum power (Pmax): 40Wp
- MPP voltage (Vmpp): 8,40V
- MPP current (Impp): 4,76A
- Open circuit voltage (Voc): 13V
- Short-circuit current (Isc): 5,95A
- Device Efficiency (STC) 15.4%
- 1112 mm x 117 mm x 75 mm
- 43.78” x 4.61” x 2.95”
- 2224 mm x 117 mm x 75 mm
- 87.56” x 4.61” x 2.95”
- Certification IEC in process by AENOR
- Grid-connected 3 SoHo3X 20Wp devices (60 Wp in total). Clamp: adaptable in size to any streetlight pole configuration. Micro-inverter 100Wp.
- Off-Grid SoHo3X 20Wp. Battery (2-7 days of autonomy, according to latitude and height). Regulator PWM (charge controller for the battery). Cool box: for battery and regulator storage.
- The specifications needed for off-grid applications are variable and depend on the latitude of the selected location.
The smaller of our devices is, however, the most versatile and the most adaptable to different new solar uses. Its many installation possibilities, its easy handling and its small size make it our ideal companion in low power installations.
It is addressed to the off-grid, recreational activities and residential markets. Nonetheless, our little one is a perfect complement for building integration in combination with SoHo3X 40Wp.
The big brother of our family is thought for higher power installations, where size is not a key factor.
Such is the case of the off-grid, the rooftop (in all its versions: residential, commercial, industrial) and utility markets.
On the other hand, its weight and dimensions make the device easily handled and installed. Therefore, its applications are widespread.
In addition to being IEC compatible (IEC in process by AENOR), at IHT we wanted to have several performance reports on our first prototypes. These reports confirm the good behavior of our technology.
They have been carried out by internationally recognized entities, i.e., their competence and professional conduct is out of doubt. Two graphs showing the device performance are presented here.
The versatility achieved by the SoHo3X design in both its versions allows to integrate the devices in many architectural applications or use them in unconventional situations.
Street Lighting Accessories
SoHo3X in its vertical configuration provides a new element to be integrated in any street lighting existing pole or in a brand new design. Either grid connected or off-grid, SoHo3X is the best choice for urban integration while generating power at the consumption point, all comming from solar renewable sources.
Leisure time Accessories
You can carry your SoHo3X any place you want and have free electricity without worrying about complicated installations which are difficult to transport.
SoHo3X becomes your ideal travel companion.
Wall Cladding Accessories
Thanks to the self-structure integrated in the base, you can hang the device on any vertical or tilted wall. The SoHo3X is then transformed into a façade element.
Through avoiding additional structure, the installation of SoHo3X turns into a new concept. In the case of co-planar installations, you will only need a fixing bar to the roof, the base itself acts as the horizontal structure. In the case of tilted structures on rooftops the same will apply, as no fixing horizontal features are needed. All of the above contributes to reducing the installation BoS.
Vertical / horizontal jalousie Accessories
Possible configurations with SoHo3X exceed all expectations. The assembly parts in different sizes, designed by IHT to interconnect devices, allow you to combine distances between the elements, such that you can build vertical or horizontal jalousies as a second skin in façades and rooftops. This casts shadows on the building, while generating electricity at the same time.
In addition, the combination of the chosen back finishing of SoHo3X and its rainbow frontal side contribute to make this architectural solution a very attractive one. In horizontal jalousies, you can even use the devices as rainwater canals and use this rainwater to your own convenience.
The wide range of finishings to choose for SoHo3X build up other applications by imitating decorative elements with no specific functionality. Such is the case of pergolas in gardens and recreational spaces. Wood is very accurately imitated and decorates your favourite places while it supplies power.
Water guiding architectural sunshade Accessories
Passive elements used in buildings to reduce light incidence in summer, when the sun is higher, can be re-invented with SoHo3X. You can design a visera which generates electricity, casts shade on the building and can guide rainwater thanks to its V-shape. We will then not only clean the devices, but also re-use rainwater.