Is the Ampd Silo Eco-friendly?

There has been lots of talk on whether an on-grid energy storage system is really eco-friendly. The following article will highlight some of the green benefits in using the Ampd Silo.

Lithium-ion Vs Lead Acid Batteries

Lead acid batteries are the most common storage medium for UPSs (Uninterruptible Power Supply). They are cheap and have been the mainstay for the past 100 years, but not without problems:
  • Lead batteries have a low depth of discharge, meaning one must oversize (use more batteries) for an equivalent amount of storage.
  • The lifespan of lead acid can be in the region of 3-4 years, while Li-ion has a lifespan of double that, equating to more lead acid batteries required over a UPSs lifespan.
  • Chemicals in lead acid batteries, if not recycled properly, can result in acute or chronic lead poisoning, numerous health issues and potentially death. With over 4 million tons of lead being used in batteries annually, this can be a huge problem
By using Li-ion batteries, the Ampd Silo has an eco-friendly advantage over the mainstay of commercial UPSs.

Replace Diesel Generators

Diesel generators are a massively pervasive backup power solution. According to a World Bank Enterprise Survey about 32% of the companies in East Asia and Pacific use a generator. Diesel is also hugely polluting. Diesel exhaust contains more than 40 toxic air contaminants, including benzene, arsenic, and formaldehyde, which are known or suspected cancer-causing substances, and nitrogen oxide, a key ozone-depleting emission. The single most dangerous by-product for humans are lung penetrating PM2.5 emissions. According to the London Atmospheric Emissions Inventory, construction sites are responsible for approximately 7.5% of damaging nitrogen oxide (NOx) emissions, 8% of large particle emissions (PM10) and 14.5% of emissions of the most dangerous fine particles (PM2.5). The bulk of these are directly related to diesel generators. Traditional backup power solutions, especially UPSs, have a very small energy storage capacity. This only allows them to power a load for a short (~15 mins) amount of time. The Ampd Silo on the other hand has a 17kWh storage capacity, allowing it to power a ten-person office, or a 5-bedroom ICU ward for 4 and 6 hours respectively. The World Bank Enterprise Survey shows that Asia Pacific countries have on average 2 electrical outages a month for a duration of 3 hours. In this scenario, the Ampd Silo can negate the need for a diesel generator or, at worst, greatly reduce their run time.

Energy Generation Efficiency - Power Plants Vs Diesel Generators

Power plants come in many forms. The most common is the coal fired power plant, which represents about 40% of global electricity generation. Sadly, it is also one of the most polluting. However, when compared to diesel generators, it is much more efficient due to scale. Using stored electricity from a coal powered power plant is better than generating your own. Thankfully, coal is not the only source of electricity. Most grids use a mixture of sources ranging from fossils fuels, such as coal and gas, to nuclear and renewables such as hydro, solar and wind. In fact, the growth of renewable is starting to outstrip their fossil fuel counterparts, making the electricity garnered from the grid cleaner. While we still have a long way to go, we are headed in the right direction. The cleaner the grid, the cleaner the energy the Silo can use and the greater its benefit compared against diesel generators.

Ampd Silo Has Been Designed for Energy Efficient Cooling

The Ampd Silo is designed with passive cooling systems, avoiding the need to use expensive air-conditioning units to cool the system. Each Energy Storage Module (ESM) has 2 passive cooling systems. Batteries are surrounded by a patented polymer lattice designed for optimal thermal conductivity, which in turn is dissipated through heat sinks. This process is aided by small fans to improve the efficiency of the heat sinks.

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