@christian,as you await with a reply from an experienced guy you should note the following: - Know the client power demand in (Kwh). Multiply all the loads by their running hours per day. Include an allowance of future load increase and location (geographical location determines the effective sun hrs per diem). The final figure will be used to dimention the system. - use the Power demand to calculate the no. Of solar panels & rating and also to determine the 3-phase inverter ratings. then u will be almost done

@christian; Presumably,the 415V implies that you are looking for a 3-phase output at 240Vac per phase. That is not a problem. The issue you have to be extremely careful about is the POWER and ENERGY requirements of your client. So find out the number of kVA required. This is NOT equal to to kW rating of the devices,especially if there are inductive loads in the system - e.g.,motors,solenoids etc. May I ask; why is your client insisting on solar while other renewables could prove cheaper. have you considered wind,for example? Behind the gardens...Behind the wall...Under the tree (Including: Red...Dark Blue...Yellow)

@ Christian, In order for you to determine the size of your client’s pv requirements there are two ways in which you could go about it. The first is to request for the latest electricity bill from the client and analyse the average load from the total kwh consumed. This is not a recommended method because it is very inaccurate and does not give the worst case design parameters as required. The second method is to carry out an on site load inspection of the electrical services installed in your clients facility and note all the load details. From here you can determine the total connected and diversified load which will help you to determine the total output from the intended pv system. It is also worth noting the current overall power factor of the existing electrical installation. Please note that the size of the pv arrays needed will determine the mounting area required (either the roof or the ground). therefore it will prudent for you to inspect and determine the available roof and the free ground spaces areas. otherwise you may come up with a pv array for the required pv power supply needs with no roof or ground space to mount them! again the surface area available will also determine the type of pv technology that may be used as the pvs are of different types... NEVER TALK OF A RHINO IF THERE IS NO TREE NEAREBY - ZULU PROVERB

@Christian; Contact Electrical Distributors Ltd,[talk to Amrish - 0722829105 OR Omosh - 0733588551]. They have been installing Salr/Wind hybrids for Orange Telkom remote BTSs.....Marsabit,Laisamis,Kajiado etc Behind the gardens...Behind the wall...Under the tree (Including: Red...Dark Blue...Yellow)

@Mkimwa; 2kW is 2,000W....a lot of power,it can light up over 30 regular 60W bulbs....or 200 10W energy-saving bulbs. Most domestic solar panels average only 50W...yes hamsini!! A 2MW unit would be a serious overkill for running a school....unless they want to power up neighbouring villages!!!! Behind the gardens...Behind the wall...Under the tree (Including: Red...Dark Blue...Yellow)