The impact of photovoltaic (PV) array size, orientation, inclination, load profile, electricity buying price, feed-in tariffs, PV/inverter sizing ratio ([`]sizing ratio') and PV/inverter cost ratio ([`]cost ratio') on the economic viability of a grid-connected PV system was investigated using a...

The internal temperatures of 25 households in Northern Ireland were measured in each house at four locations: the bedrooms, living rooms, halls and kitchens, and analysed on seasonal, monthly and daily bases. In 80% of the homes the winter average daily temperature was between 15 °C and...

The performance of a novel heat exchanger unit ([`]Solasyphon') developed for a solar hot water storage system was experimentally investigated. The [`]Solasyphon' is a simple [`]bolt-on' heat exchange unit that can be integrated externally to a traditional single-coil hot water cylinder (HWC)...