Capacity of solution, no of people served, problem faced by customer, benefits of solution to customer.
Davis & Shirtliff designed, supplied and installed a Solar water pumping system, with provision for Mains Power as backup, to deliver 450m³/day to Ngoma Irrigation Scheme (Rwanda) for Ministry of Agriculture and Animal Resources .
Key deliverables included:
- 45kW Solar PV power generation system.
- Design of Solar and Mains power pump control systems.
- Pumps to deliver required duty 450m³/day with a multi pump control system to control duty/standby operation.
Approval of designs was done by Takaoka Engineering Co. Ltd (Japan).
Factory Acceptance Testing and Site Acceptance Testing was by the Principal contractor Konoike Construction Co., Ltd.
LINK TO CONTRACTORS SITE NEWS: http://www.takaoka-eng.co.jp/en_news/en_news_detail19.html
Freedom Heights is a unique and luxurious apartments and Mall along Langata Rd opposite Carnivore Entrance.
Its funded by LapTrust and Landmark is the Contractor. D&S was sub-contracted to carry out the solar hot water installations in all the apartments, 252No.
Work was done in 2018, and completed and commissioned in December 2018.
SYSTEM COMPONENTS
There is a total of 48 solar panels connected in strings of 16 panels each
Burhani mosque, one of the largest mosques in old town Mombasa located near the harbor, was faced with the challenge of escalating power bills which had risen to the tune of kShs. 450,000 per month on average.
Davis & Shirtliff was approached to offer an affordable solution that would help reduce their power bills to manageable levels. Receiving an average solar radiation of 7kWh/m2/day, Mombasa is a very ideal location for solar-powered solutions, and we embarked to design a solar grid-tie system to complement power supply from the national grid with solar.
By the use of energy data logging equipment, we were able to estimate their daily energy use profile and designed a 50kW solar grid-tie solution, which primarily supplies electricity generated from the solar PV system. During days where the power demand exceeds what is supplied by the solar PV system, and at night where no solar power is generated, the grid-tie system then draws electricity from the national grid.
Employing solar energy to achieve grid parity for this project, has significantly reduced the mosque’s reliance on grid power and this has resulted in the reduction of their power bills by over 30%
SYSTEM COMPONENTS
We had a total No. of 144 watts solar panels. A set of 48 pieces of 315 watts Yingli solar panels
are connected in 3 strings each with two solar panels in series and 8 in parallel to generate
5,040 watts at 68.48Amps per string. This power was feed through 3 MPPT Victron charge controllers for charge regulation to a battery bank of 48V,1849A battery bank. The two other sets had 48 No. of solar panels connected in series parallel connection.3 rows of 16 No.
OFF-GRID PV POWER PLANT, 15KW TO POWER A DESALANATION UNIT.
SYSTEM CONSISTS OF 45No . 330W PV SOLAR modules, 24no.2vdc batteries, 20kW SMA TRIPOWER STP20000 PV inverter,
3No.6kW SUNNY ISLAND battery inverter, 1No.Data Manager, 1No.8way
distribution board, 1no.change over Switch, 1no.router and
1no.3way battery fuse
SUPPLIED AND INSTALLED 30KW CARPORT SOLAR GRID TIED SYSTEM. |
The system was designed to reduce the power bills by utilizing solar power during the day. |
THE SYSTEM COMPRISED:
THE SYSTEM PERFORMS VERY WELL AND THE COMPANY IS ABLE TO REDUCE THEIR POWER BILL BY ABOUT 30% AND THE SYSTEM IS EXPECTED TO HAVE A ROI OF 3YEARS.
The project was commissioned and handed over in presence of Coast GM
Mohamed Farook, Mtwapa Branch Manager Chris Muli , Michael Chola Solar
Technician, VTTI K LTD Maintenace Manager Benedict Namwamba and
Maintenance Engineer Ronald Odongo