Survey data on energy-saving policies, energy price, crisis and household energy-saving behavior

The state policies and energy prices are evaluated to play a crucial role in the context of crises occurring in each country. The authors collected data on state policies and energy prices concerning energy-saving behavior during crises, with a particular focus on the Covid-19 crisis. The data was gathered from 1216 respondents, who are households. The data's reliability was assessed using Smart-PLS software. The data will provide research ideas related to state policies, energy prices, and energy-saving behavior associated with crises similar to Covid-19.


Value of the Data
• The data will provide information about the role of energy-saving policies in relation to energy consumption issues in households.
• The data will provide information about the role of energy prices concerning energy consumption issues in households.
• The data will provide information about the role of crises concerning energy consumption issues in households.• The data will assist researchers in studying the impact of energy-saving policies, energy prices, and crises on energy-saving behavior.• The data will help the government formulate energy-saving policies and pricing strategies to promote energy-saving behavior in the context of crises.

Objective
In the context of crises and the increasingly complex global warming phenomenon, this study gathers survey data to assess the impact of energy-saving policies and energy prices on the energy-saving behavior of households.

Data Description
Energy plays a crucial role in various aspects of daily life, leading to increasing demand and consumption levels worldwide due to economic development and population growth [1] .In Vietnam, significant progress has been made in the energy sector alongside overall advancements.With rapid economic growth, energy consumption in Vietnamese households has risen sharply, representing 30.8 % of total consumption, following industry (32.2 %) and construction (31.7 %).However, the reliance on fossil fuel-based thermal power (58.4 % of total energy production) has resulted in environmental challenges, posing a threat to sustainable development [2] .To promote energy efficiency and conservation, the Government of Vietnam has introduced Decision 280/QD-Ttg, aiming to achieve energy savings of 5 to 7 % and reduce average power consumption from 3 % to 15 % in specific areas by 2030.Energy-saving policies play a crucial role in reducing energy consumption and optimizing the use of existing energy sources [1] .It is an important aspect of policies to consider in protecting the environment, enhancing energy security, and supporting sustainable development [3] .
Energy prices significantly influence household energy consumption behavior, carrying significant implications for energy conservation policies and strategies.Higher energy prices drive the adoption and usage of energy-saving appliances, leading to decreased energy consumption and cost reduction [4] .Consumers may also reduce appliance usage duration and practice turning off lights when not needed, further promoting energy conservation [5] .These behavioral changes collectively result in reduced overall energy consumption, fostering a culture of energy conservation within the community and contributing to a more sustainable society [ 5 , 6 ].Understanding the relationship between energy prices and household energy use is essential for developing effective initiatives aimed at promoting energy efficiency and conservation [7] .
Indeed, in recent years, researchers have also explored the impact of crises on the income and energy-saving behavior of the population [8] .Particularly, the COVID-19 factor has been extensively considered from 2020 up to the present (Considering COVID-19 as a crisis).Besides posing health risks, COVID-19 has increased the risk of job loss and reduced income during uncontrollable periods [9] .Therefore, according to the protective motivation theory, employment risks may prompt individuals to engage in economically protective behavior by using energysaving and efficient measures.
The population was examined households in provinces and cities in Vietnam.Our data were collected from October 2021 to May 2022 via social network (facebook, Email).This study surveyed 1216 valid samples.The results show that females account for 51.6 % with 628 individuals, while males represent 48.4 % with 588 individuals.Regarding education, the largest proportion is university graduates with 755 individuals (62.1 %), followed by postgraduates with 271 individuals (22.3 %).The third-largest group is college graduates with 99 individuals (8.1 %), and the smallest group is high school graduates with 91 individuals (7.5 %).In terms of occupation, the majority are official staff with 586 individuals (48.2 %), followed by self-employed individuals with 362 (29.8 %).The smallest group is unemployed individuals with 12 (1 %).As for monthly income, the main group surveyed has an income above 20 million VND/month, accounting for 529 individuals (43.5 %), followed by the group with incomes between 15 to 20 million VND/month with 439 individuals (36.1 %).The group with incomes below 10 million VND/month has the smallest percentage with 56 individuals (4.6 %).The participant characteristics are presented in Table 1 .Data is considered important when providing information on factors related to energy-saving policies, price, crisis, subject norm, perceived usefulness, perceived ease of use, behavior control, attitude toward energy-saving, and intention for energy-saving behavior.The data can yield assessments of households regarding the current state of government energy-saving policies as well as other factors related to intentions and energy-saving behaviors in households.Additionally, the data will provide insights into the evaluation model of the impact of energy-saving policies on intentions and energy-saving behaviors in households.

Experimental Design, Materials and Methods
The items measured constructs in the model were adapted from previous studies [ 6 , 7 , 10 , 11 ].All of constructs are first-order constructs.The items in the questionnaire were translated from English to Vietnamese and used back-translation to ensure the questions do not change meaning in the translation process.The questionnaire is referenced from previous research studies and presented in Table 2 .The items will use the Likert scale with five levels.Where 1 = totally disagree, 2 = disagree, 3 = normal, 4 = agree, 5 = totally agree.The scales and references for the design of the scale are detailed in Table 2 .Collected data will be evaluated for reliability with two criteria: Cronbach's Alpha coefficient greater than 0.6 and Composite Reliability greater than 0.7 [12] .Analysis results on Smart-PLS 3.0 software show that all constructs are reliable (see Table 2 ).Next, the constructs continue to be included in the convergence analysis through two criteria: factor loading factor greater than 0.5 and Average Variance Extracted (AVE) greater than 50 %.The analysis results also show the construct reaching convergence validity (see Table 2 ).
The formulas to calculate the factor loading, CR, AVE: is the factor loading; K j is the number of indicators of contruct ξ j ; p is number of indicators; σ i is variance of the error term for the indicators.
Constructs are further tested for discriminant validity, as suggested by Fornell and Larcker.The test results show that the factors reach discriminant values (the square root of the AVE values is higher than most coefficients correlation with ranging between 0.764 and 0.918).We adhered to the guidance provided by Hair et al. [12] and proceeded to investigate the discriminant validity by calculating the Heterotrait-Monotrait (HTMT) ratios.These ratios were less than 0.9, thus confirming that our constructs exhibited discriminant validity, as outlined in the work of Hair et al. [12] (the detail in Table 3 ).The HTMT with constructs ξ i and ξ j , K i and K j indicators was calculated: r ig,ih × 2 r ig, jh r ig,jh is correlation coefficient between the construct scores of constructs ξ i and ξ j

Ethics Statement
Respondents to questionnaire participated voluntarily.Also, all personal information such as name, identity is not collected to ensure the respondent's privacy.
This study was promoted by the Degree No 052022/QD-QAglobal from Quantitative Analysis Center, QAglobal, Vietnam