Solar Technology
Cost Environment Green buildings Flexibility

Solar energy is free and equally available for everyone in a given location. And there are very few operating costs. No oil changes, spare parts replacements, fuel consumption, etc. Solar PV systems should be maintained and monitored. That involves some costs, but once properly installed, they are easy and cheap to maintain.

There is no fuel consumption during power generation, which makes for significant reductions of carbon dioxide emissions, sulfur dioxide emissions, and water consumption compared with coal.

Solar PV systems have additional benefits beyond monetary and environmental savings. Installing a Solar PV system on a rooftop protects the roof by absorbing sunlight and weather. This reduces the summertime cooling cost by up to 15% and can extend the service life of the roof.

The solar PV system can be installed exactly where the energy is needed. There is no need for any transmission grid, as solar energy is consumed and produced at the same location. The most advantageous locations for Solar PV systems have high electricity costs and lots of sunlight.

What is Solar PV? How does Solar PV work? Solar PV System Design

A photovoltaic system, also known as a Solar PV power system, or PV system, is a power system designed to supply usable electric power by means of photovoltaics.

It consists of an arrangement of several components, including solar panels, cables and relevant additional equipment, like an inverter (when grid connected) or a battery (in case of a stand alone system).

Sun & Solar Energy
The sun produces an enormous amount of energy. The energy from the sun is produced from deep within its core, where high pressure causes over four million tons of hydrogen to be converted to helium every second through the process of nuclear fusion. In one hour enough sunlight hits the earth to power our world for one year.

Panel & Inverter
Photovoltaic, or "PV" Solar panels convert some of the energy from the sun into electricity. A typical solar panel contains many individual solar cells. Light hitting the solar cells causes the release of electrons, resulting in a direct, or "DC" current, similar to the electricity produced by a flashlight battery.

Meter & Grid
The grid is the network of power lines that moves electrical energy from where it is produced to where it is used. Distributed solar power systems are located on or near buildings where the energy is used, reducing the load on the grid and nearby traditional power plants. On sunny days, power meter may actually run backwards as excess power flows back onto the grid to help power nearby homes and businesses.

A Solar PV system uses PV modules to convert sunlight into electricity. The system can be located anywhere exposed to sunlight, including rooftops, verandas, building façades, the ground, parking lots, etc.

Systems are typically connected to the local utility grid to provide additional electricity for users’ daily use.

Most rooftops, including concrete, color steel, and tiled roofs can be used for PV installations, but the load bearing capacity must meet the panel weight requirements.

Cost Environment Green buildings Flexibility

Ground Energy systems save money by reducing energy consumption by 20%-30% compared to conventional air source chiller systems and 40%-50% relative to natural gas or city steam heating systems.

Ground Energy systems significantly reduce fossil fuel consumption? The removal of cooling towers saves water and reduces noise, and frees up space on the roof for alternative uses such as rooftop gardens and other greenspace.

Ground Energy systems contribute to green building certifications such as LEED and China’s ‘Three Star’ system by reducing carbon emissions, energy use and water loss.  ACC’s expertise helps building owners gain the maximum number of green building points for each installation.

Ground Energy systems are suitable for residential, commercial, industrial and public buildings and can be installed in new and existing buildings. As a comprehensive heating, cooling and hot water system, it saves space, reduces noise and requires less maintenance and servicing than conventional systems.

What is GES? How does GES work? GES System Design

A Ground Energy system provides energy efficient year-round heating, cooling and hot water for buildings and industrial processes.

When used for heating and cooling a building, the GES replaces conventional chillers and boilers while retaining the buildings standard internal HVAC distribution systems.

A GES is also a great source of thermal energy for industrial processes which require heating/cooling supply in the temperature range of 4 - 60Celcius.

Below five meters , the earths underground temperature is relatively stable throughout the year C generally higher than the air temperature in winter and cooler in summer.

A Ground Energy system uses this temperature differential to extract geothermal energy from the ground and transfer it into a building for heating, cooling and hot water needs.

Effectively, the earth becomes a heat source in winter and heat sink in summer.

Ground Energy systems can be installed in new and existing buildings. The systems are available in different configurations depending on the heating/cooling load requirements load, the local geology and available land space.

In an ACC installed GES, water is circulated within closed circuit loops made of heat-fused high density polyethylene pipe to extract energy from the earth.  Occasionally, other energy sources are utilized, including local lakes and ground water reservoirs.  ACC utilizes two closed loop configurations:

(1) Vertical ‘U-Bend’ loops with a depth of up to 150 meters that can be placed under, adjacent to the serviced building or within the building foundations.

(2) Vertical loops that are placed within the building piles during foundation construction.