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In response to the growing demand for zero-energy housing, today's home needs not only to be energy-efficient, but also to provide part of its own energy requirements. The energy efficiency may be improved by applying high thermal performance building envelope and passive energy and environmental systems to housing. Micro-power can be generated through the use of renewable energy technologies. This paper is aimed at providing a comprehensive guideline on the design techniques and approaches to the delivery of net zero-energy healthy housing in view of the ÉcoTerra house, which won the Canadian federal government's EQuilibrium sustainable housing competition. The house was built in Eastman in the province of Quebec and it is currently open to the general public in order to sharpen the consumers' awareness of commercially available net zero-energy healthy housing today.

Today, Japanese housing manufacturers compete to produce net zero-energy-cost houses that are usually equipped with some renewable energy technologies-e.g. a solar photovoltaic electric power generating system, a CO2 refrigerant heat-pump water heater and a combined heat and power system. Interestingly, the manufacturers tend to install these costly renewable technologies as standard equipment rather than options. To initiate and maintenance the sales of their environmentally-friendly houses, the manufacturers bring into effect their quality-oriented production and user-oriented communication approaches. The manufacturers' way to commercialise their industrialised housing to some extent reflects their high cost-performance marketing strategy. This paper somewhat reflects the learning outcomes of the Zero-carbon PV Mass Custom Home Technical Mission to Japan that the first author organised in 2006 and 2007. It is aimed at identifying the manufacturers' essential commercialisation strategies being applied for the niche-marketing of their net zero-energy-cost housing.

In response to growing global warming issues and the constant increase of energy prices, housebuilders and housing manufacturers today are becoming more responsive to the delivery of net zero energy and carbon dioxide (CO₂) emission sustainable homes than ever. Within this context, the sustainability may embrace housing economy and adequacy beyond the legitimacy in which the quality barely coincides with individuals' dynamic various needs, desires and expectations. Nevertheless, the industry's business operation tends to follow routines and the close system mode of operation often hinders the enterprises from adopting unfamiliar innovations which may be inevitable in realising the delivery and operation of socially, economically and environmentally sustainable homes.

Homes need to be socially, economically, and environmentally sustainable in response to societal pressure on our common future. The concept of ‘Sustainable Development’ was first advocated by the World Commission on Environment and Development, dated back to 1987, and it was considered as ‘a process of change in which the exploitation of resources, the direction of investments, the orientation of technological development, and institutional change are all in harmony and enhance both current and future potential to meet needs and aspirations.’ In 1992, this notion was given additional impetus at the United Nations Conference on Environment and Development (or the Earth Summit) held in Rio de Janeiro where an initial international treaty on environment was produced; however, this had neither limits on green house gas emissions nor legal enforcement provisions for individual nations. In 1997, the text of the Kyoto Protocol to the United Nations Framework Convention on Climate Change was adopted eventually at the 3rd Conference of the Parties held in Kyoto, Japan. As of April 2008, 178 states signed and ratified the Protocol; in consequence, most industrialized nations and some central European countries agreed to legally binding the reductions of greenhouse gas emissions of an average of 6 to 8% below 1990 levels between the years 2008 and 2012.

Energy usage of households accounts for a significant portion of total energy consumption and carbon emissions. Scottish homes today are highly energy consumers emitting on average 3 tonnes of CO₂ per house annually and the amount exceeds the UK average of 2.75 tonnes of CO₂. Moreover, 26% of the households are actually facing fuel poverty and it is therefore a critical task to efficiently manage and minimise energy trends in housing in order to meet carbon dioxide (CO₂) emission reduction and energy consumption cut targets such as 80% overall cuts in carbon emissions by 2080 for the UK, compared with 1990 levels. The study has been undertaken within the Zero Energy Mass Custom Homes (ZEMCH) research network's demonstration projects e.g. ‘ZEMCH 109’. The existing post-council end-terraced house was intended to be extended in South Ayrshire, Scotland in 2012. As part of the project, the Building Environments Analysis Unit (BEAU) research centre has conducted a post occupancy monitoring of the energy and indoor environmental conditions e.g. indoor air temperature, relative humidity and CO₂ levels in the Scottish affordable home which will also continue even after the construction of the newly built extension and the refurbishment of the existing home. It is therefore important for the successful demonstration of the ZEMCH 109 project and for the purpose of this study that a detailed monitoring and a post occupancy evaluation (POE) of the exiting NRGStyle home are performed sufficiently in order to investigate the relationship between energy consumption and the indoor environmental conditions and cross-checked with the accepted standards.

Occupants dwelling in hot climatic regions of India for a longer term are tolerable to high temperature levels than predicted by American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) standards. The purpose of this study is to evaluate the thermal sensations (TS) and neutral temperature of the occupants in naturally ventilated (NV) and air-conditioned (AC) classrooms of two technical institutions located in the same premises in the suburbs of Madurai. The main focus of this study is to understand the occupants’ behaviour in response to the thermal conditions of the educational buildings particularly in the warm and humid climatic zone of Madurai.

This research collected data through field studies. The data included 383 survey questionnaires from NV classrooms and 285 from AC classrooms, as well as on-site measurements of interior and exterior weather conditions. The TS results show that the students preferred well-designed NV classrooms than AC classrooms. A new adaptive comfort equation derived from this study can be applied to NV classrooms in warm and humid climates where mean outdoor temperature exceeds 40°C.

The neutral temperature derived for NV classrooms in Madurai ranged from 29°C to 34°C. Thus, the occupants in the NV classrooms of the higher learning educational institutions in the warm and humid climatic region of Madurai can adapt well to higher indoor temperature levels than predicted by ASHRAE comfort levels with minimum adjustments.

The study was limited to only occupants in two premier higher learning technical educational institutions located in Madurai region within 5–10 km within the city limits to understand the implications of microclimate with respect to the urban context. Thus, further research is required to examine the tendency under local conditions in other regions beyond those applied to this study.

The findings of this study showed that occupants in higher learning educational intuitions in Madurai prefer NV classrooms than AC classrooms. Therefore, with rising demands of energy use for mechanical ventilation and the associated high cost for running AC buildings, architects should prioritize the design of energy efficient buildings through the optimal use of passive design strategies for ventilation and thermal comfort. This study gives a base data for architects to understand the adaptive limitations of occupants and design NV buildings that can promote natural ventilation and provide better thermal environments that can help increase the productivity of students.

This paper was an attempt to develop the adaptive comfort model for NV classrooms in Madurai regions. There has been no attempt to identify the adaptive comfort levels of occupants in higher learning technical educational institutions located in warm and humid climatic region of India.

This study aims to explore the influence of health-care service quality on customers’ perceived value, satisfaction, effectiveness and behavioural intention concerning district health centres (DHCs) in Hong Kong. This research also intends to assess customers’ perception of the subsidy scheme and its influence on the relationships amongst the aforementioned constructs.

The convenience and snowball sampling approaches were adopted, and the self-administered questionnaire was sent to 309 customers of DHCs.

Service quality attributes in terms of staffing and procedures positively increased customers’ perceived value and staffing, procedures and operations. Physical facilities positively promoted customers’ satisfaction, consequently improving DHCs’ effectiveness and behavioural intention. However, core treatments and services of DHCs did not impact customers’ perceived value and satisfaction. Furthermore, customers receiving subsidies exhibited a more positive perception than those without subsidies.

Health-care organisations are advised to strategically allocate resources (staffing, facilities and procedures and operations management) to optimise overall performance outcomes. DHC operators could reinforce the core services of DHCs and health-care voucher subsidies to local citizens so as to enhance the effectiveness of DHCs and behavioural intention of customers.

This study integrates the input–process–output approach in measuring the effectiveness of and customers’ behavioural intention towards newly established DHCs.