NEW! T*SOL Pro 5.5: Now with a revised and expanded economic calculation and Photo Plan

Valentin Software's new version of the solar thermal program T*SOL Pro, 5.5, will enable users to easily calculate yields for the use of solar thermal collectors

A substantial argumentation aid for solar heating systems

The software T*SOL Pro – for the simulation and optimization of solar thermal systems is now available in version 5.5. Thanks to the integrated imaging program, Photo Plan, collectors can be simulated on a customer's roof in their real dimensions and represented photo-realistically. One of the new features is an expanded economic efficiency forecast which includes a yield calculator. Annual savings and payments can now be balanced in a table and presented in a graph. In addition, the project report now displays solar proportions separately according to the share of warm water and heat. Besides the calculation of the net present value, payback period, and the cost of solar energy you also will find a calculation of the modified internal rate of return (MIRR) and the profit taking into account the reinvestment assumption.

Additional information on all additional features included in T*SOL Pro 5.5 can be read in the release notes at .

About Valentin Software

Valentin Software has been providing solar professionals with industry leading design, simulation and sales tools for 25 years. Our company is committed to expand the adoption of solar and support the growth of the solar industry by developing powerful, yet easy-to-use, software tools for solar professionals. Valentin Software's software is used by customers in over 70 countries throughout the world for the development of residential, commercial and utility scale projects. Valentin Software s dynamic software offers three product lines: photovoltaic (PV*SOL), solar thermal (T*SOL) and heat pumps (GeoT*SOL). Within those product lines are different levels of software: basic, Pro/advanced and Expert to service all types of users. Free demos of all of our software programs can be downloaded from our website at

Free demos and more information on the entire range of software products in the field of renewable energy can be found on Ordering is easy through the Online Shop, by e-mail to or by fax to (858)777-5526. For inquiries, the team at Valentin Software can be reached directly by phone from 07:00 to 4:00 PST at 951-530-3322.

Featured Product

Sierra Instruments, Inc.- InnovaMass. Reinvented.

Sierra Instruments, Inc.- InnovaMass. Reinvented.

Sierra was the first to introduce a combination volumetric vortex and multivariable mass flow meter in 1997. Today, Sierra's completely redesigned InnovaMass® iSeries™ 240i/241i builds on two decades of success measuring five process variables for gas, liquid and steam with one connection. Now, with the latest hyper-fast microprocessors, robust software applications, field diagnostic and adjustment capability, and a new state-of-the-art flow calibration facility, Sierra's vortex iSeries delivers precision, performance, and application flexibility never before possible.