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[Back]Home - Products - New Energy

The demand for energy continues to rise with economy growth. Fossil fuels contribute to a large portion of the global energy supply and air pollution as well. Global warming becomes a big concern because of burning fossil fuels. Renewable energy, however, can play an important role in reducing air pollution and carbon dioxide emissions thus mitigating global warming.


Rainbow Group, through its subsidiaries and global partners, are building the supply chain of new energy sector. we zoom into supplying solar panel and biomass fuels such as wood pellet and palm kernel shell (PKS) at this moment. Let’s work together to make our Earth cleaner and greener. Send us enquiry now.


Solar panel
We can supply two types of solar panels, monocrystalline and polycrystalline. 

 

Monocrystalline solar panel has higher silicon purity and performance efficiency with nicer looking (uniform dark look). The cost is slightly higher. Typical module efficiency is about 15-20%. Available sizes of common module include 60cells or 72cells. Cell size 6”x 6”. Average power rating of individual cell is up to 4.61W.


Polycrystalline solar panel has lower silicon purity and performance efficiency with dark blue looking. The unit cost is relatively lower than that of monocrystalline type. Typical module efficiency is about 13-16%. Available sizes of common module include 60cells or 72cells. Cell size 6”x 6”. Average power rating of individual cell is up to 4.33W.


The determining factors to select the correct solar panels include performance efficiency, cost and space-efficiency etc.


Palm Kernel Shell

Palm kernel shells (or PKS) are the shell fractions left after the nut has been removed after crushing in the Palm Oil mill. They are perfect fuels for wood co-generation plants, thermal power stations, biomass power stations and industrial plants because of their high dry matter content, low ash amounts, negligible sulfur content and relatively high calorific characteristics.
               

Typical specifications of PKS we can offer are as below. Packing can be plastic bags, big bags or bulk.

  

Test Parameter

PKS

Total Moisture (ARB):

%wt

15 – 20 (max 22 due to rain)

Ash content (ADB):

%wt

3-5

Total Impurity (ARB):

%wt

Max 3

Total sulphur (ADB) :

%wt

Max. 1

Gross calorie value (ARB) :

kcal/kg

4300

Net calorie value (ADB):

kg/m3

4000-4200


Wood Pellet

Wood Pellets are the most common type of pellet fuel and are generally made from compacted sawdust and related industrial wastes from the milling of lumber, manufacture of wood products and furniture, and construction.

                

Sample specifications of wood pellets we can offer are as below. Packing can be plastic bags, big bags or bulk.

  

Test Parameter

Wood Pellet

Test methods

Total Moisture content

%wt

Max. 10

ASTM D 2961 - 11

Ash Content

%wt

Max. 3

ASTM D 3174 - 12

TotalSulphur

%wt

Max. 0.05

ASTM D 3177 - 07

Nitrogen

%wt

Max. 0.7

ASTM D 5373 - 08

Gross calorific value (as received),

kcal/kg

Min. 3900

ASTM D 5865 - 13

Density

kg/m3

Min. 600

ASTM 6347

Chlorine

%wt

Max. 0.05

Spectrophotometric

Diameter

mm

6 ~ 8

-

Length

mm

10 ~ 40

-