sunnyCALC™ is available in three versions – 'professional', 'auto-design' and 'lite'. All variations perform the same computations, but differ in the level of control the user can exercise over project set-up inputs.

lite: highly automated project set-up – unlimited access is granted without registration or charge.

auto-design: semi-automated project set-up – this version is complemented by electriCALC™ and billCALC™, calculators that allow the user to determine the electricity required (or being used) at the property, FREE trial available.

professional: highly configurable project set-up – this version is also complemented by electriCALC™ and billCALC™ and a range of additional calculators. These additional calculators, collectively referred to as the 'professional toolkit', consist of variations of shadeCALC™. shadeCALC™ allows the user to consider the shading effects of a raised skyline, overrhangs and opaque and semi-transparent obstacles, FREE trial available.

ecocalc.com offers accounts with four subscription levels: Bronze, Silver, Gold and Platinum . The subscription level determines the level of access granted to the simulator.

Bronze subscription: account holders may perform 1 calculation(s) at an unlimited number of locations using the 'auto-design' version of sunnyCALC™ – £0.00/ €0.00

This account has been designed for professionals and prospective installation owners wishing to investigate the power of the sunnyCALC™ calculator. It can also be used as an independent second opinion on the accuracy of calculations performed by other means.

Silver subscription: same as Bronze account holders plus the following: 1 calculation(s) at 1 location(s) using the 'professional' version of sunnyCALC™ – £20.00/ €25.00

This account has been designed for prospective installation owners wishing to independently confirm the accuracy of calculations performed by other means.

Gold subscription: same as Bronze account holders plus the following: 10 calculation(s) at 1 location(s) using the 'professional' version of sunnyCALC™ – £30.00/ €38.00

This account has been designed for prospective installation owners wishing to independently evaluate and compare the benefits of using equipment from different manufacturers and different system configurations etc.

Platinum subscription: same as Bronze account holders plus the following: 10 calculation(s) at unlimited locations using the 'professional' version of sunnyCALC™ – £200.00/ €252.00 per annum

This account has been designed for professionals who require cost effective simulation for a large number of quotations and projects. This customer group cite the following advantages of using sunnyCALC™ . . .
 – independence: their customers trust sunnyCALC™ more that manufacturer or bespoke software, and
 – full market coverage: sunnyCALC™ can evaluate the performance of equipment from all manufacturers.

ecocalc.com renewable energy website set-up and hosting services.

ecoWEB™ : set-up fee: £200/ €252.00, monthly fee: £20/ €25.00 per month

This service has been designed for samll organisations in the renewable energy sector who want a low-maintenance, cost effective professional website solution. You do not need webmaster skills to avail of this service.