Greenhouse gas emissions have increased by 25% since the industrial revolution began 150 years ago. Today, fossil fuels supply 80% of the energy consumed in India; burning petroleum and coal are accountable for more than 60% of CO2 emissions in India.
Demand for A/Cs (be it window, split or portable ACs) is anticipated to grow as the temperature levels increase. Heatwaves triggered blackouts, illness and sometimes even death during the summer of 2003, at least 35,000 individuals died from a heatwave that baked Europe. Seven of the eight hottest years on record happened since 2001 And 10 of the hottest years have taken place in the past 25 years. Global surface temperatures have actually increased by 1.4 degrees F (0.8 degrees C) in the past 100 years, and scientists anticipate temperature levels might increase by approximately 2 to 11.5 degrees F (1.1 to 6.4 degrees C) by the end of the 21st century.
Minimizing the use of fossil fuels and replacing them with renewable resources for energy is essential to putting the brakes on the results of climate change. The only alternative for decreasing the energy consumed by air conditioning has been to simply turn it off, until now. Solar ac system takes advantage of the sun at its brightest and uses its energy to cool you during the most popular part of the day.
Environmental Benefits of Solar Air Conditioners
Conventional a/c unit running at the most popular points of the day contribute to power grid demands that frequently lead to failures. Solar cooling systems use ecological benefits including lower grid demand and load shifting throughout peak usage, decreased electrical power expenses, fewer power blackouts, off-the-grid abilities and minimized greenhouse gas emissions.
Solar a/c units come in two standard tastes: hybrids and chillers.
A hybrid system combines photovoltaic technology (PV) with direct current (DC). It automatically changes in between solar and battery power as needed. When it’s set to hybrid mode, these systems charge their batteries when the sun is shining; when it isn’t, the system works on battery backup while charging its batteries through alternating current (Air Conditioning) power.
GreenCore Air, for example, developed its solar-powered a/c unit to work either completely off the grid or as a hybrid solar/battery a/c system. It is powered by a single 170-watt photovoltaic panel, runs on DC power and has the capacity to cool about a 600-square-foot (55-square-meter) space.
Solar-powered absorption chillers, likewise called evaporative coolers, work by heating and cooling water through evaporation and condensation. Chillers cool the air by blowing it over water-saturated product– solar energy is used to power the fan and motor. SolCool’s hybrid solar a/c, for instance, runs on solar power, can be plugged in or can run off batteries. Even when plugged into a standard source of power, it runs at an optimum of 500 watts per hour, compared to about 900 for a standard window ac system (and 3,500 watts for an hour of central air). Its chiller choice provides a/c for hours after a power failure.
Concerns about Solar Air Conditioners
For those wanting to replace their standard a/c with a greener option, solar-powered absorption chillers do offer lowered energy usage but will increase a home’s water consumption. By design, chillers need to be attached to a water line or water tank, making them a little less green than the hybrid solar-powered air conditioners that work on solar power and battery power.
And no matter which design you prefer, a solar-powered ac system unit is going to cost you. It’s not as much as setting up photovoltaic panels on your roofing, however, compared to medium-sized standard window a/c units that usually sell in the numerous dollars, a solar-powered system will cost you a few thousand plus setup charges. Chillers will also require to be hooked up to a water line. Nevertheless, the expense savings to the world and your wallet, in the long run, could be motivational enough.