Solar Briefings and Case Studies


Technical Notes and Briefings

performance of solar panels with bypass diodes

T011 Solar Panel Electrical Architecture and Shading

How does the use of by-pass diodes in modern solar panels avoid the damaging effects of partial shading due to leaves or localised soiling, and what advantages does half-cut cell technology offer?

moisture management in buildings and roof integrated solar

T010 Management of Moisture in Buildings - Requirements for Roof-integrated Solar

New technical guidance for 2024 from NHBC requires that any roof pitch with roof-integrated solar is treated as having an impermeable covering - this document outlines roof ventilation requirements according to BS 5250 to comply with this requirement.

performance of solar panels installed in the roof

008 The Energy Performance of In-roof PV

Solar panels installed in the roofline have lower levels of free ventilation and operate at higher temperatures than systems installed on rails above the roof covering. But how much does this actually affect the energy yield from PV panels?

performance of solar panels installed in the roof

009 - MCS012 - Pitch Perfect

What the introduction of MCS012 means for solar installers. How the new requirements for wind uplift resistance, fire ratings and weathertightness impact roof integrated solar systems.

fire regulations and solar panels

007 - Complying with Regulations on Fire

Building Regulations control the installation of roof integrated solar systems, which must have a fire rating for the external spread of flame. What this means for solar installers.

wind loading of solar panels

006 - Wind Uplift for Solar

How to ensure that the solar system you are fitting has a high enough wind load rating for the location you intend to install it. The difference between the wind loads on solar systems installed above the roof and integrated in the roof.