I have a Bluetooth PS50 portable solar powered generator. I have only charged it up before using AC wall outlet. I have purchased a BALDR 120W solar panel for it. My question is do I need any kind of controller between the solar panel and the generator?

I am prepping to click approve on a plan for a solar system provided by Tesla & need help making sure it is the right solution for my needs… Needs: Solar solution can run everything in the house without a priority breaker panel in the event of an power...

Delivery pipe size over 200m- head of 40m -10000 litres in   15hrs.

Is solar panels worth it

Dear colleagues, would be your kind to support us in designing the solar system (pump, solar panels and etc.) is there any easy way (norms) to do it without access to the compass of the companies. we really in trouble in this matter.

Is there any ways to receive updates from you, e.g. a newsletter or follow you on social media to receive updates?

hello, this is Pierre Fourcassie, UNICEF. I am in Mozambique at the moment and i was wondering if you could share any documents on PV water pumping project in this country -or Angola. Documents could be evaluations, documented good/bad practices, analysis, site visits, technical project documentations, suppliers, etc… –...

In your cost comparisons of solar vs generator pumping schemes, is drilling of borehole included in the calculation?

In your life cycle cost analysis , what the justification on the difference on the break even period for different countries? why is just 1 year in Uganda and 5.1 years in Iraq?

In your cost analysis, did you consider the maintenance cost of systems knowing that in remote areas people do not have the skills? How do you manage that because it could help to increase the lifespan of systems and empower local communities especially youth?

What is the life time for solar pump and system invertor?

How do we integrate financing of Solar powered water systems especially to Sub- Saharan African Countries?

In your Life Cycle Cost Analysis, usually the exact cost of equipment, maintenance and repair costs are lacking in developing country so how you exactly calculated LCC or you take the estimate.

Could a pump controller and/or inverter be sized large so it will be connected to power (or operate) multiple (submersible borewell) pumps?    

Especially when compared to equivalent diesel-based solutions? Thank you.