Rainwater Harvesting
It is now viable to harvest rainwater for your whole household. This includes rainwater harvesting, storing and pumping rainwater for bathing, showering, toilet flushing, pool, laundry and irrigation. Rainwater harvesting together with other Water Rhapsody products can save up to 90% of your water bill.
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Category Archives: Solar Energy
With Yes Solar your solar geyser will pay for itself!
“Last year I installed those solar panels in my house for the geyser, that energy-efficient kind. Today, I got a call from the contractor who installed it. He complained that the work had been completed a year ago and I still hadn’t paid for them. Hellooo … just because I’m blonde doesn’t mean that I am automatically stupid. So, I told him
Subsidies vir sonkraggeisers droop op!
Die installering van laedruk-sonkraggeisers in die Baai is voorlopig gestaak omdat Eskom se subsidies daarvoor opgedroog het. Die sondraggeisers is n Eskom-projek en word deur hom gefinansier. Sowat 30 586 geisers is al by regeringshuise hier aangebring. George Ferreira, van die maatskappy wat die geisers installeer, het gesê hulle het al 120 000 huishoudings voorsien. Ferreira het op n onlangse komiteevergadering oor infrastruktuur, ingenieurswese en energie gesê die projek is gestaak weens geldnood en hy weet nie wannneer dit hervat sal word nie. Volgens Mnr. Ferreira spaar huiseienaars maandeliks sowat R30 aan krag met laedruk- sonkrag-geisers. Hulle het egter heelwat probleme ondervind tydens die installering. “Talle huiseienaars wat by hul huise laat aanbou het se dakke voldoen nie aan die standaarde nie en ons kon nie installasies doen nie. Ons het ook enkele lekke ondervind omdat vullertenks wat plaaslik vervaardig en SABS-goedgekeur is, foutief was. Ons moes 6000 van die vullertenks vervang. Sommige foutiewe krane is vervang. Van die geysers wat verkeerd geïnstalleer is, het van huiseienaars se dakke afgewaai.” Dié probleme het veroorsaak dat die maatskappy nie soveel wins gemaak het as wat hy aanvanklik bereken het nie. Helga van Staaden – PE Express, 21 September 2011
Wind Power in South Africa
Kilian Hagemann, director at G7 Renewable Energies (one of SA’s leading large-scale wind farm developers), rates wind power as the leading technology available to meet South Africa’s renewable energy targets. “It’s the only technology that has really been successfully rolled out on a large scale worldwide and we have a wide variety of international projects to learn from to ensure a successful implementation in SA. According to Hagemann, South Africa can expect to see its first large-scale wind farms operating in late 2013 if the procurement process is concluded by the end of this year.” “We expect the SA market for wind-power to grow significantly over the next three years. I’ve had various meeting with role-players, including government officials, and it seems clear to me that the current SA administration is intent upon moving increasingly towards renewable as far as energy supply is concerned.” Applications for at least 88 wind farms have been received by the Eastern and Western Cape authorities and some of these wind farms are expected to have as many as 600 turbines located on them.
Load shedding – again?
With winter not in full swung yet South Africa’s electricity shortages are so severe that Eskom is regularly cutting supply to some of its major clients to prevent the entire supply network to collapse. During peak times last month Eskom had to use it’s gas turbines, which should only be used during emergency situations. While Eskom and Ms Dipou Peters, Minister of Energy, maintains that no outages are expected, the market still reacted sharply last week to rumours of South Africa possibly facing a re-occurrence of the load shedding crisis of 2008. Me Hilary Joffe, Eskom’s head of communications, admitted that Eskom’s power reserves was so low the last year that scheduled maintenance work had to be postponed. The current load on the national power network is under severe stress. The situation was exacerbated by the explosion of the Duvha power station at the beginning of the year, resulting in a loss of 600MW in generating capabilities. The 600MW is enough to supply the city of Bloemfontein during peak hours. According to Mr Mike Rossouw, chairman of the Energy Intensive Users Group (EIUG), it happens more regularly that supply to some aluminium smelters and Eskom’s bigger industrial customers has to … Continue reading
Posted in Energy Saving, Renewable Energy, Solar Energy, Solar Geysers
Tagged Load Shedding, Solar geysers, Solar power, Yes Solar
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What is Climate Change?
Outline of the potential problem of climate change and its cause as understood by the South African Weather Service The climate of the world varies from one decade to another, and a changing climate is natural and expected. However, there is a concern that the human industrial and development activities of the past two centuries have caused changes over and above natural variation… What is climate change? Climate change is the natural cycle through which the earth and its atmosphere are going to accommodate the change in the amount of energy received from the sun. The climate goes through warm and cold periods, taking hundreds of years to complete one cycle. Changes in temperature also influence the rainfall, but the biosphere is able to adapt to a changing climate if these changes take place over centuries. Unfortunately, human intervention is currently causing the climate to change too fast. (Climate models predict that the mean air temperature over South Africa will increase by an estimated 2°C over the next century.) Plants and animals may not be able to adapt as quickly to this rapid climate change as humans can, and therefore the whole ecosystem is in danger. What causes climate change? … Continue reading
Posted in Climate Change, Dam Levels, Green, Grey Water Recycling, Rainwater Harvesting, Renewable Energy, safe water, Solar Energy, Water Conservation, Water Tanks
Tagged Climate Change, Dam Levels, Global Concern, Rainwater Harvesting, Saving water, Water Conservation, Water Rhapsody, Yes Solar
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Grahamstown: Limited Water
“Serious water shortage in Grahamstown causes some areas to have access to water only one hour per day. It is especially rural settlement Vukani that are being hit by this the worst. During a public meeting earlier this week held by The Movement for Unemployed People, it became clear that the only hour water would be available is during the middle of the night. Around 50 people, mostly woman, from the Vukani Location attended the meeting. Prof. Denis Hughes, the Director for Water Research at Rhodes University acted as chairperson for the meeting. Both the Makana Municipality’s municipal manager, Me. Ntombi Baart and Mr. Dabula Njilo, director of Technical and Infrastructural Services were expected to attend the meeting to explain to the public what the state of the situation is, but none showed up.” Die Burger, 26 Nov’10 – Anna-Karien Otto Let this not be said from your town one of these days. Try to start changing your lifestyle and think different about water and the usage thereof. Contact Water Rhapsody to give you a quote on greywater re-use, recycling your pool’s backwash water, saving the amount of toilet flushing-water, being prepared to harvest rainwater etc. Do what you can … Continue reading
Posted in Climate Change, Green, Grey Water Recycling, Rainwater Harvesting, safe water, Solar Energy, Solar Geysers, Water Conservation, Water Tanks, Weather
Tagged drought disaster area, Grahamstown, Greywater re-use, Natural Resources, Rainwater Harvesting, Saving water, Solar geysers, Vukani Location, Water Conservation, Water Restrictions, water safe, Water Stress, Water tanks, Yes Solar
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Interesting Facts about Electricity
A spark of static electricity can measure up to three thousand (3,000) volts. A bolt of lightning can measure up to three million (3,000,000) volts – and it lasts less than one second! Electricity always tries to find the easiest path to the ground. Electricity can be made from wind, water, the sun and even animal manure. Burning coal is the most common way electricity is made in the United States. The first power plant – owned by Thomas Edison – opened in New York City in 1882. Thomas Edison invented more than 2,000 new products, including almost everything needed for us to use electricity in our homes: switches, fuses, sockets and meters. Benjamin Franklin didn’t discover electricity – but he did prove that lightning is a form of electrical energy. One power plant can produce enough electricity for 180,000 homes. Alternative Energy The bicycle is the most efficient form of transportation known. It uses five times less energy than walking. B.C.’s forest industry obtains 25% of its electricity from biomass — in this case, the waste material from their own industry. A system of distribution and transmission lines brings electricity to southern Manitoba through 70,000 km of lines. That’s … Continue reading
Posted in Energy Saving, Renewable Energy, Solar Energy, Solar Geysers, Solar Power, Solar Water Heating, Water Conservation, Water Tanks
Tagged Alternative Energy, going green, Saving Electricity, Solar geysers, Solar panels, Solar power, Static Elecrisity Spark, Wind Tubine, Wind Tunnels, Yes Solar
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Fascinating Facts about Energy
Science Energy cannot be created or destroyed. It can only be converted from one form to another. Find an elastic band, and stretch it out. The stretched rubber band has potential energy. If you let it go, it moves and has kinetic energy. Have you ever wondered how you might get a hot air balloon to float up and down? How would you launch it? How would you get it back to earth? The balloon rises by warming up the air inside it. It descends by letting the air inside it cool down. It all works because of heat energy. Electricity travels at 300,000 km/sec. If you travelled that fast, you could travel around the world eight times in the time it takes to turn on a light switch. The energy produced by the atom-splitting of one kilogram of uranium is equivalent to the burning of 1.3 million kilograms of coal or 1.35 million litres of oil. People run on energy too, and food is our fuel. The unit we use to measure expended heat energy is the calorie. Calorie expenditures comparison: Lying at ease – 1.5 cal/min Tennis – 7 cal/min Playing drums – 4–6 cal/min Golfing – 6 … Continue reading
Posted in Energy Saving, Green, Renewable Energy, Solar Energy, Solar Power, Solar Water Heating, Water Tanks
Tagged Electricity, Energy, going green, Hot Air Balloon, Hydrogen Nuclei, Interesting Facts about Energy, Natural Resources, Saving Electricity, Saving water, Water tanks, Yes Solar
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Interesting Facts about Electricity
History The first windmills were developed in Persia in about 600 B.C. About 200 years ago, Alessandro Volta discovered that when two strips of different metals were put in a sulphuric acid solution and connected with a wire, electricity began to flow. Voila! The first electric battery was developed! Think of him the next time you pick up your battery-operated CD player or Game Boy. In 1879, just over 100 years ago, Thomas Edison invented the first light bulb. (Thomas Edison didn’t invent the first light bulb – but he did invent one that stayed lit for more than a few seconds. Think of the incredible changes it has brought to our current world! The first windmill to produce electricity was in Denmark in 1890. In the past, frightened sailors voyaging at night saw ghostly phantoms of bluish light dancing on the masts of ships. Called Saint Elmo’s fire, the light is actually a form of static electricity. In 1986, an accident at Chernobyl, USSR, sent radioactive material into the atmosphere and raised concerns about the production and storage of radioactive waste. What is a kilowatt hour? When we buy petrol, we’re charged per litre. When we buy electricity, we’re … Continue reading
Posted in Green, Renewable Energy, Solar Energy, Solar Water Heating, Water Tanks
Tagged Compact Fluorescent Lightbulbs, Green Power, Interesting Facts about Electricity, Kilowatt Hour, Light bulbs, Natural Resources, Saving Electricity, Solar geysers, Solar power, Thomas Edison, Water Rhapsody, Yes Solar
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South Africa Solar Challenge
The South African Solar Challenge 2010 is an ambitious, two-week race in solar-powered cars throughout South Africa from the 20th September to the 2nd October. Teams are to build their own cars, design their own engineering systems and race those same machines through the most demanding terrain that solar cars have ever seen. The South Africa Solar Challenge promotes renewable energy technologies (specifically photo voltaic or “solar cells”), educational excellence in science, engineering and mathematics and creative integration of technical and scientific expertise across a wide-range of disciplines. The challenge is also a hands-on experience for students and engineers to develop and demonstrate their technical and creative abilities. Yes Solar were lucky to catch up with the Japanese team in Jeffrey’s Bay on the 29th of September. We were astonished by the speed of this little car and were told that it reached a top speed of 171km/h at one stage during the challenge. They however stay within the speed limit as this is one of the rules of the race. The race end in Pretoria at the Innovation HUB (Arriving from 10am to 5pm)
Posted in Solar Energy
Tagged Saving Electricity, Solar, Solar panels, Solar power, Yes Solar
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