The Cambridge University Library has begun what it hopes to be a green revolution by unveiling an array of four photovoltaic ‘solar trees’ outside the University Library.

The trees are a collaboration between the architectural firm Sadler Brown and the photovoltaic expert EvoEnergy. They should generate ten per cent of the library archive store’s annual energy needs - approximately enough electricity to power a large house.

Comprised of large glass panels mounted on five meter high steel ‘trunks’, the trees are said to be modeled on the tessellated windows of the main University Library building.

The windows were designed by the renowned architect Sir Giles Gilbert Scott in the 1930s, creator of  the London red telephone box.

When contacted by Varsity, University Energy Manager Paul Hasley seemed extremely pleased with the project.

“The ‘trees’ at the Library are performing better than expected and solar PVs will be seen at more University buildings, including a large array on the roof of the Sainsbury’s Laboratory in the Botanic Gardens which is currently under construction.”

The University has, however, been evasive about where the cost of the array comes from.

CUSU Environment Officer Beatrice Patrick agreed that the initiative is “really positive”, adding that she “would also like to see steps forward on a smaller scale.

“These could include an increase in ethically, environmentally, and locally sourced food,and better recycling facilities.”

Other students are more ambivalent. After being shown the panels for the first time, Helen Simpkiss, a first year historian at Christ’s, said that the they were “unoffensive” and admired their “unusual design”.

When told of their energy output, however, she called them “a complete waste of money”.

The University Library, generally not associated with trailblazing, is beginning to develop something of a reputation for nurturing contemporary design.

Feminist writer Germaine Greer declared the institution “a beacon of naffness” earlier this year after fourteen bronze bollards shaped like stacks of books were installed outside the library entrance.

For those interested in seeing the solar trees for themselves, they are located at the far south-western corner of the library building.