Still using expensive coal for heating? Try a pollution-free PV+HP
For people born in the last century, the smell of smoke in front of the stove is one of the winter memories, and until now, the mainstream heating method is also burning coal.
Around the beginning of winter in November, many northern regions have started heating, but with increasingly strict carbon emission restrictions in recent years, coal-fired heating is also gradually being phased out. New type heating systems are opening up the market, especially in the current trend of high electricity bills. How to reduce the impact of electricity bills has become a way to reduce heating system costs.
Self-responsibility for profit and loss - household heating
For example, there is no centralized heating system in the United States. Instead, it is household heating, which means self-heating. Therefore, the pollution caused by heating in American households is relatively dispersed, and there will be more choices in the energy used. Nearly 90% of American households choose natural gas or electric heating.
According to statistics from the US Census Bureau, there are currently approximately 117 million households in the United States, of which nearly 50% use natural gas for heating because it is the cheapest. About 39% of households use electric heating, which is also because the price of electric heating is second only to natural gas. From this, it can be seen that the demand for electric heating and the price of electricity bills also affect the popularity of electric heating.
In August of this year, the electricity bill in New York City increased by 9% and will continue to rise in the next three years. According to the Daily News of New York, the New York State Public Service Commission voted on July 20th to approve the power company's three-year price increase plan:
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The high electricity bills are prompting residents to seek lower cost solutions, and in this regard, the UK, which has a similar heating model, provides an answer, which is a heat pump (HP) subsidy.
Subsidies for "PV + HP" begin
According to government data, 85% of British households use natural gas for heating, but since April last year, the energy price ceiling has increased by 54%, and the bills for approximately 22 million people will increase by approximately ￡ 700 to ￡ 2000 per year.
In order to address the issue of tight energy supply, the UK government has provided ￡ 5000 in subsidies to 90000 households through its boiler upgrade program to help pay for the cost of air source heat pumps. The plan is to achieve an annual installation capacity of 600000 units after 2030.
The so-called air source heat pump (ASHP) is similar to an external unit of an air conditioner, but focuses more on the heating function. Compared to an air conditioner, it can provide long-term heating at a lower cost, especially in winter, where the heating effect is better and the cooling effect is also slightly worse.
Compared to using air conditioning, using an electrically driven ASHP can reduce energy costs by ￡ 375 per year.
However, due to approximately 51% of electricity in the UK coming from gas power stations, the increase in electricity bills can easily offset the cost savings.
According to the Energy Conservation Trust (EST), the average installation cost of solar photovoltaic (PV) systems in UK is about 6500 pounds, which can save up to 400 pounds per year for people working from home.
Therefore, many British households include photovoltaic systems in their heating lists. And real estate developers are also paying close attention.
PV power generation saves 84% of operating costs for heat pumps
Since the beginning of carbon tariffs, heat pumps have been regarded as a solution to carbon emissions in the construction industry. If solar power generation is used to operate heat pumps at this time, it can save some additional funds in terms of economic benefits.
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A study by the European Solar Energy Association (SPE) analyzed and compared the electricity costs of heat pumps operating in Germany, Spain, and Italy with and without local solar power generation.
In Spain, the combination of photovoltaic power generation and heat pumps saves 84% of heating costs; although the savings rate in Germany is relatively low, it also reaches 62%. Even if natural gas prices fall back to 20 euros per megawatt hour before the Russia Ukraine crisis, the large-scale promotion of the combination of "photovoltaic + heat pump" is still possible.
And it can also play a stabilizing role in the power grid:
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The advantage of the "photovoltaic + heat pump" system lies in the stable income of photovoltaic power generation, with a thermal efficiency greater than 300%.
One thing, four uses, can provide refrigeration, heating, hot water, and green electricity;
Sunshade and insulation to reduce building energy consumption; Safety and environmental protection, energy conservation and emission reduction.
The operating cost is lower, and the heating efficiency can reach 300% within a 20 year life cycle.
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The system does not require significant government investment in infrastructure construction. It can generate electricity during peak hours and use electricity during low periods, effectively alleviating the pressure on the power grid.
Investment in household systems can be higher than fixed deposits
Michigan Institute of Technology has conducted relevant research, pointing out that North American residents installing household "photovoltaic + heat pump" systems have a high return rate of 1.9% in the United States and 2.7% in Canada to meet all their electricity and heating needs. The return rate of photovoltaic power generation systems alone is as high as 4.3%; and less than half of the photovoltaic power used for heating is still used.
These results indicate a clear and simple way to reduce greenhouse gas emissions, by investing in photovoltaic heat pump systems, which can provide higher internal rates of return than savings accounts, certificates of deposit, and global average investment institutions in both countries. It can be considered as a 25 year investment in financial security and environmental sustainability.
Efficient and sturdy components are investment protection
If you are looking for relevant suppliers. You may need to start from high-quality products, as efficient and sturdy components can make the entire system more profitable and stable.
For this reason, we recommend using Sunpro Power, the HJT fully transparent solar module SP-182-144DSN. Compared to higher power, 600W can also achieve benefits at lower costs when meeting daily household needs. The fully transparent module has higher lighting efficiency and looks better, making it very suitable for home environments with photovoltaic and heat pumps.
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Wishing you has a warm winter.
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