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Optimizing Fleet Routes Decreases Fuel Costs.

But, looking at the consumption of military jet fuel over time, we can clearly see a steady decline of consumption:

 the consumption of military jet fuel over time

 

 

Similarly, municipal fleets, including buses and other forms of city transportation, use a heavy amount of energy every year. Although, much like the military, we’ve seen a steady decline in the rate at which they consume. Factors include:

 

·         Manufacturing (technology)

·         Fewer people traveling

·         People living closer to work

·         Hybrid transportation

 

Beginners' guide to certifications of solar panel (Photovoltaic, PV): IEC 61215 / EN 61215 IEC 61215 Ed. 2

The IEC61215 covers the parameters which are responsible for the ageing of Photovoltaic (PV) modules. IEC61215 certification includes all forces of nature. The following forces of nature are included:

1. Sunlight including ultraviolet radiation.
2. Climate (changing of climate, coldness, warmth, humidity).
3. Mechanical load (hail, wind suction, wind pressure, snow parameters which are responsible for the ageing of Photovoltaic modules).

2400 Pa uniform load applies for the standard IEC 61215 certification.

But when you install solar panels in areas with heavy snow, an increased load capacity of 5400Pa is advisable! This uniform has been included in the IEC 61215 ed. 2. 

Beginners' guide to certifications of solar panel (Photovoltaic, PV): UL

In the US, without an UL certification, you are not allowed to connect solar panels (Photovoltaic, PV) to the electricity grid. And without the UL mark, you won't receive any government rebates & tax incentives on solar panels. Meanwhile, you won't receive coverage from your insurance after your house caught on fire.

But if you are in the field of an off-grid solar energy system, don't worry about this. Because you don’t apply for government rebates & tax incentives for the off-grid solar power system.

Beginners' guide to certifications of solar panel (Photovoltaic, PV): CE

Below is some simple introduction to certifications of solar panel (Photovoltaic, PV). In fact the number of solar panel (Photovoltaic, PV) certifications is increasing quickly.

Firstly it's CE. Conformité Européenne (CE) may be one certification you already heard again and again. But what's CE? To be simple, Conformité Européenne (CE) is placed on products to state conformance with regulations of European Union. It is the Authentication Certificate. If you want to sell your solar power related products in Europe, you definitely need this certification.

Sino-US trade war with green energy (renewable power, alternative energy)

On October 15, 2010, the office of United States Trade Representative (USTR) announced, investigation is being excuted  to a series policies of  of green energy (renewable power) of the Chinese government in accordance with Section 301, "U.S. Trade Law". The investigation focused on the Chinese Government for the high subsidies of the companies engaged in renewable energy (alternative power, renewable energy).

This investigation is regarded as a new trade war of Sino-US. Experts say domestic enterprises in China on photovoltaic (solar energy, solar power) with large exports will be impacted.

Solar Valley in China: biggest solar energy production base in the world

Solar Valley in China: biggest solar energy production base in the world

Solar Valley in China, is located near the northern city of Dezhou, Shandong Province, China. Dezhou was just a small city in China, few people know its name outside this area. But now it's different. Dezhou is famous as China Solar City, a national center using green energy (renewable power, clean energy, alternative power).

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