Light to Solar Gain (LSG) is a ratio that results from a window''s SHGC being divided by its VLT rating. The LSG ratio measures the glass''s ability to transmit light and block heat in the form
Learn More
Shading Coefficient (sc) is Solar Factor divided by 0.87. It is a measure of the solar heat gain referenced to 3 mm clear glass which has the designated value of 1.00.
Learn More
It compares the amount of visible light that a window allows to pass through (Visible Light Transmittance or VLT) to the amount of solar heat gain that the window allows to pass through (Solar
Learn More
Here are the five key takeaways from the current body of knowledge: The LSG Definition is Universal: Across the industry, the Light-to-Solar Gain ratio is accepted as the definitive metric for
Learn More
Solar Heat Gain Coefficient (SHGC) – The proportion of total solar radiation that is transferred through the glass, which results in heating the home. Lower numbers indicate better solar performance.
Learn More
Solar Heat Gain Coefficient (SHGC) is the ratio of the measured solar heat through a given glass type to the incident solar heat on the glass. The measured values are affected by the air films on either side
Learn More
If you''re designing a direct gain passive solar home, you will need to maintain a careful balance between two vital parts: the amount of glazing on each side of the house and the amount of thermal mass
Learn More
It provides a gauge of the relative efficiency of different glass or glazing types in transmitting daylight while blocking heat gains. The higher the number, the more light transmitted without adding
Learn More
Light-to-Solar Gain Ratio (LSG) The visible transmittance of a glazing divided by its solar heat gain coefficient.
Learn More
Selecting glass for a project is an important and sometimes dificult task, to assist in this process G.James ofers the following recommendation for viewing glass samples.
Learn MoreV4V Super Power Africa is a leading energy storage equipment manufacturer and integrator based in South Africa, serving the African continent. We specialize in lithium‑ion battery storage, sodium‑ion battery storage, system‑level battery management (BMS), energy conversion systems (PCS), communication cabinets for telecom infrastructure, commercial & industrial energy storage cabinets, integrated photovoltaic storage systems, distributed energy resources, deep discharge applications, and turnkey energy storage solutions. As a full‑service energy storage equipment manufacturer, we also provide containerised BESS, modular battery racks, backup emergency power, and zero‑carbon microgrids. Our advanced lithium‑ion and sodium‑ion solutions ensure safety, scalability, and high performance for residential, commercial, industrial, and utility projects across Africa.
Our modular energy storage portfolio ranges from compact distributed energy resources to 20ft/40ft mobile containers and outdoor all‑in‑one storage cabinets. We are a leading energy storage equipment manufacturer, offering communication cabinets for 5G/telecom, server racks for data centers, and lithium‑ion & sodium‑ion battery modules with integrated BMS. Our stackable design allows flexible capacity expansion, while our grid‑forming technology ensures stable off‑grid operation. Whether for off‑grid power systems, backup emergency power, PV+storage integration or large zero‑carbon parks, our products feature advanced thermal management, PCS and EMS integration, deep discharge cycling, and compliance with South African and international standards. We also provide professional energy storage system installation and after‑sales support across Africa.