Commercial Solar Power That's Unrivalled for Quality

Optimised SolarEdge inverters

Solahart’s Panel Optimised (PV) Systems maximise overall system performance by optimising the performance of each panel. Ideally suited for partial shading situations and if individual panel level monitoring is desired. SolarEdge are forerunners in the optimisation market and their products have received various awards for innovation and reliability. The SolarEdge SE15K and SE27.6K three phase inverters are ideal for large-scale commercial and industrial plants. Panel level optimisation allows for enormous design flexibility and improved performance in low light scenarios. Our systems are designed and engineered with every component carefully selected to meet Solahart’s stringent specifications, ensuring optimum performance and protection. 

World-leading REC panels
The harsh Australian environment demands quality solar power components. That’s why we use world-leading REC solar panels which are consistent with Solahart’s quality and performance requirements. REC panels are also a great choice for the environment.

Solar Panel Specifications

Panel Electrical Characteristics
Maximum Power (Pmax)
Power Class
290W
0/+5W
Open Circuit Voltage (Voc) 38.8V
Short Circuit Current  (Isc) 9.58A
Maximum Power Voltage (Vmp) 32.1V
Maximum Power Current (Imp) 9.05A
Module Efficiency (%) 17.4
Temperature Coefficients  
PMPP
VOC
ISC
-0.36%/ ˚C
-0.30%/ ˚C
+0.066%/ ˚C
Maximum System Voltage  ( IEC ) 1000V

 

Panel Specifications
Dimensions 1675 mm x 997 mm x 38 mm
Weight 18.5 kg
Cell Type and configuration 120 REC HC multi-crystalline cells
6 strings of 20 cells
Glass 3.2mm solar glass with anti-reflection surface treatment
Back sheet Highly resistant polyester
Frame Anodised aluminium
Temperature range -40°C to + 85°C
Junction Box Protection Class IP 67
Connectors Multi-contact MC4
Part Number REC290TP2
Solahart Warranty 10 years (5 years labour) on panels*

 

PV Curves at Difference IrradiancesIV Curves at Different TemperaturesIV Curves at Different Irradiances 

Inverter Technical data SE15K SE27.6K
Output (AC) 
Rated AC Power Output 15000 VA 27600 VA
Maximum AC Power Output 15000 VA 27600 VA
AC Output Voltage (Nominal) 400 / 230 Vac
AC Output Voltage Range 184-264.5V
AC Frequency (Nominal) 50 ± 5Hz
Maximum Continuous Output Current 23A 40A
Residual Current Detector / Residual Current Step Detector 300/30mA
Utility Monitoring, Islanding Protection, 

Country Configurable Thresholds
Yes
Input (DC) 
Maximum DC Power (Module STC) 18750W 37250W
Transformer-less, Ungrounded Yes
Maximum Input Voltage 415 Vdc
Nominal DC Input Voltage 375 Vdc
Maximum Input Current 22 Vdc 40 Vdc
Reverse-Polarity Protection Yes
Ground-Fault Isolation Detection 700kÙ Sensitivity
Maximum Inverter Efficiency 98% 98.3%
European Weighted Efficiency 97.60% 98%
Night time Power Consumption <2.5W <4W
Additional features 
Supported Communication Interfaces RS485, Ethernet, 
Wi-Fi (optional)
Smart Energy Management Export Limitation, StorEdge applications
Standard compliance 
Safety IEC-62103 (EN50178), 
IEC-62109, AS-3100
Grid Connection Standards VDE 0126-1-1, 
VDE-AR-N-4105, AS-4777, RD-1663, DK 5940
Emissions IEC61000-6-2, IEC61000-6-3,IEC61000-3-11, 
IEC61000-3-12, 
RoHS Yes
Installation specifications 
Dimensions (W/H/D)mm 315/775/260
Weight 36.2 kg 48 kg
Cooling Natural convection and internal fan
Noise <50 dBA <55 dBA
Operating Temperature Range -20˚C to 60˚C (Power derating above 50˚C)
Protection Rating IP65 - Outdoor and Indoor
Product Details 
SolarEdge Part Number SE15K SE27.6K
Solahart Warranty 10 years1

*For full details see Solahart Owners Guide & Installation Instructions

• Standard features

o Optional features
Data at nominal conditions

1. Only with external NS protection

2. Does not apply to all national appendices of EN 50438

How Solar Power (PV) Systems Work

Solar power panels generate electricity from sunlight. The roof mounted solar panels are made up of many photovoltaic (PV) cells. These cells collect the sun’s light and convert the energy into DC electricity. This is fed through an inverter and converted to 240V AC electricity to power your home.

The amount of electricity you can produce depends on the number and efficiency of the panels, the size of the inverter and the amount of sunlight in your location. Your home remains connected to the electricity grid so when you generate more electricity than you need you can feed it into the grid or purchase more from the grid when you are not producing enough to meet your requirements.

The Science Explained

The amount of energy from the sun that falls on Earth's surface is enormous. All the energy stored in Earth's reserves of coal, oil, and natural gas is matched by the energy from just 20 days of sunshine. Outside Earth's atmosphere, the sun's energy contains about 1,300 watts per square meter. About one-third of this light is reflected back into space, and some is absorbed by the atmosphere (in part causing winds to blow).

By the time it reaches Earth's surface, the energy in sunlight has fallen to about 1,000 watts per square meter at noon on a cloudless day. Averaged over the entire surface of the planet, 24 hours per day for a year, each square meter collects the approximate energy equivalent of almost a barrel of oil, or 4.2 kilowatt-hours of energy every day. Deserts, with very dry air and little cloud cover, receive the most sun—more than six kilowatt-hours per day per square met

How does a solar cell turn sunlight into electricity?

The sun's light (and all light) contains energy. Usually, when light hits an object the energy turns into heat, like the warmth you feel while sitting in the sun. But when light hits certain materials the energy turns into an electrical current instead, which we can then harness for power. Solar technology uses large crystals made out of silicon, which produces an electrical current when struck by light. Silicon can do this because the electrons in the crystal get up and move when exposed to light instead of just vibrating in place to make heat. The silicon turns a good portion of light energy into electricity.

The most important components of a PV cell are two layers of semiconductor material generally composed of silicon crystals. On its own, crystallized silicon is not a very good conductor of electricity, but when impurities are intentionally added—a process called doping—the stage is set for creating an electric current. The bottom layer of the PV cell is usually doped with boron, which bonds with the silicon to facilitate a positive charge (P). The top layer is doped with phosphorus, which bonds with the silicon to facilitate a negative charge (N).

When sunlight enters the cell, its energy knocks electrons loose in both layers. Because of the opposite charges of the layers, the electrons want to flow from the n-type layer to the p-type layer, but the electric field at the P-N junction prevents this from happening. The presence of an external circuit, however, provides the necessary path for electrons in the n-type layer to travel to the p-type layer. Extremely thin wires running along the top of the n-type layer provide this external circuit, and the electrons flowing through this circuit provide the cell's owner with a supply of electricity.

How PV Cells Work

Most PV systems consist of individual square cells averaging about six inches on a side. Alone, each cell generates very little power (approximately four watts), so they are assembled together panels encased in glass and plastic to provide protection from the weather. These panels are either used as separate units or grouped into even larger arrays to form a solar power (PV) system.


Solar Power System Design

The Solahart Solar Power system is comprised of two main components; a string or array of photovoltaic panels and an inverter. The photovoltaic (PV) panels transform solar radiation into electrical energy in the form of direct current (DC). In order to utilise this energy and feed it back into the grid, the direct current is transformed into alternating current (AC) by the inverter. This conversion is also known as DC to AC inversion.

The alternating current generated by the inverter is fed into the main switchboard, which in turn is connected to the electricity grid. If the energy generated exceeds that required by property demands, your electrical network operator may allow the difference to be directly injected into the grid and become available to other users. Energy injected into the grid can be measured by electricity network operators as either gross (everything generated) or nett (excess generated). Injected energy may or may not be purchased by the local electrical network operator according to national and local standards, and regulations.

PV Panel Orientation & Inclination

To maximize system output, install panels at optimum orientation and inclination (tilt) angles. The specifics of this will depend on the installation location and must be calculated by a qualified system designer. The ideal angle for mounting a panel should result in the sun’s rays falling perpendicular (i.e. at a 90° angle) to the panel surface.

Panels should be installed in a shade free position. Even minor or partial shading of the panels/array will reduce system output. A panel is considered shade free when it is both:

  • Free from shade or shadows all year round.
  • Exposed to several hours of direct sunlight, even during the shortest days

Brochures

Commercial Solar Power Brochure: Download

Inverter Data Sheet 15/27.6 kW: Download

 

Videos

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REC Twin Peak Panels