What's the difference between BIPV and BAPV?
Renewable energy resources have become increasingly popular worldwide due to its eco-friendly nature and cost-effective operation. Today, solar energy is one of the leading renewable energy sources. But with this rising interest in solar energy, there has been a surge in new technologies. Two of these technologies used to generate solar power are BIPV and BAPV. In this article, we will differentiate between the two Solar technologies.
The Basics.
BIPV is an acronym for Building Integrated Photovoltaics, while BAPV stands for Building Applied Photovoltaics. Both use photovoltaic modules to convert solar energy into electricity; however, they differ in their integration and application.
BIPV.
BIPV refers to an architectural application of solar PV panels integrated into building elements to function as roofing, windows, or facades. It involves the direct and permanent integration of solar PV panels to a building, where the panels will be the primary envelope material that replaces or supplements standard construction materials. According to the International Energy Agency, BIPV systems are designed to combine the usual functions of conventional building materials with the added capability of generating electricity. BIPV presents an excellent opportunity for the construction industry to develop new and exciting architectural designs that are eco-friendly and generate power. .
BAPV.
BAPV, on the other hand, involves the integration of solar PV panels onto existing buildings' exterior to generate solar electricity. BAPV solutions allow existing buildings to make use of previously unused spaces such as flat rooftop surfaces, parking lots, and other unobstructed areas. BAPV systems are situated outside the primary building envelope, either added on to or in place of the building's existing cladding or roofing. Building owners can save on electricity costs with BAPV by using the panels to generate electricity.
Cost and Maintenance.
From an installation perspective, BIPV is more expensive to install than BAPV as it needs to replace the traditional building materials. While the cost of BAPV is lower, it still can be a significant investment. BAPV solar panels require regular cleaning to maintain efficiency, whereas BIPV solar panels are inclined at an angle that allows rain to wash away the dirt. Cleaning BIPV panels after installation is virtually effortless, making them low maintenance.
Efficiency.
BIPV and BAPV materials have different maximum output capacities. BAPV can produce higher electricity outputs per unit area than BIPV since they are generally installed and tilted at maximum power production angles. BAPV is more efficient in small and mid-size buildings. .
Conclusion.
BIPV and BAPV both allow building owners to produce renewable solar energy from their building exterior. While these solar technologies differ in their integration and application, they both offer significant benefits. BAPV is a cost-effective alternative to BIPV and suits existing building designs. However, BIPV is ideal for new constructions as solar panels are integrated into the building's design.
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In conclusion, choosing between BIPV and BAPV depends on the building owner's goals, budget, and architectural design plans. To learn more about which photovoltaic system is best for you or for any solar energy inquiry, please contact us.
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