Whitewater has created a website for which allows visitors to contribute to specific projects and speak directly with the charity about its work through blogs and videos.
SolarAid said the site enabled donors to visitors wanted to contribute towards, which includes funding solar power technology for communities in Malawi, Bolivia, Chile and Tanzania, for lighting, irrigation and schools.
Whitewater, which also handles accounts for NSPCC, RNLI and MS Society, said the work aimed to put donor support at the heart of the site by enabling visitors to choose which projects they wished to support.
Nick Sireau, director of SolarAid, said: "SolarAid's new website puts our donors directly in touch with our programmes, giving them unprecedented access to what is happening on the ground.
"Thanks to Whitewater's groundbreaking approach to digital marketing, we hope to pioneer a new form of fundraising that will change the way charities relate to their donors and beneficiaries."
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