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Solar water heaters for low-economy public housing in Tel- Aviv metropolin
Israel is famous worldwide for the solar-powered water heaters (known as dudei shemesh) used by buildings throughout the country. Nevertheless, many buildings built before the law required installation of solar water heaters still use polluting kerosene for heating space and water. These buildings are typically populated by poorer families that are unable to pay the solar system’s initial cost and instead pay a monthly communal kerosene bill. Due to the nature of joint dwelling regulations it takes a consensus vote to renovate or replace commonly owned infrastructure. One family resisting the switch to a solar system can prevent 30-50 other families from doing so. Given soaring oil prices, the continued use of kerosene for heating creates an economic burden on these residents as well as local and global environmental problems.
Dror 19 St, Jaffa, Old kerosene boiler
Kol Dudi (Hebrew for 'the voice of my water heater,' a play on the phrase kol dodi, the voice of my beloved, in Song of Songs) is a GEI project intended to break the financial barrier preventing a number of shared residential buildings in the Tel Aviv area from using solar power to heat water. The project helps these buildings replace the boilers by securing a financing deal and a special price with a local solar heaters producer and by reducing the down payment for poorer families with a 10% subsidy financed by the sale of carbon credit.
 
Dror 19 St, Jaffa, New solar water heaters
Each installation will prevent the burning of 18,000 liters of kerosene per 42-family building per year (average collected data). Solar water heaters are guaranteed for 10 years. Price per ton CO2eq: $13.00
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