家庭式可再生能源发电系统
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离网发电系统 完全独立于公用电网 除了能够直接使用的系统的如水泵抽水和光伏供电的通风系统，离网再生能源发电系统在低 输入和高使用率时需要用电池提供电力
Home energy systems
Grid-tied or Off Grid?
家庭式可再生能源发电系统 并网还是离网？
Location
Cost
Power outages
Grid-tied PV System
并网光伏发电系统
太阳能电池组件
光伏逆变器
住宅
双向电表
多余的电力
Grid-tied PV systems are the most common type of solar PV system. They rely on moving energy to
and from the grid. Grid-tied systems are connected to the electrical grid, and allow residents of a building to use solar energy as well as electricity from the grid.并网光伏系统是太阳能光伏发电系 统中最常见的类型。它能向电网供电或者从电网由电网供电。并网光伏发电系统与电网连接， 并允许居民使用太阳能和电网的电能
In the last s we don't have any energy coming from the Sun at night. All provided by the Utility grid. CASE 4 ： GRID ENERGY AT NIGHT
The grid now also becomes, in a sense a battery bank. Future Energy
并网发电系统（无蓄电池）
Battery-based grid-tie systems
并网发电系统（有蓄电池）
Stand-alone off-grid systems
离网发电系统
Stand-alone off-grid systems
•Completely independent of the utility grid. •With the exception of direct-use systems like water pumping or PV-powered ventilation, stand-alone RE systems must have batteries to provide energy storage during times of low input or high usage.
Batteryless grid-tie systems
并网发电系统（无蓄电池）
Battery-based griΒιβλιοθήκη Baidu-tie systems
并网发电系统（有蓄电池）
Stand-alone off-grid systems
离网发电系统
Batteryless grid-tie systems
•Simplest of all systems, having only the energy generation technology (be it PV modules, or a wind or microhydro turbine) and an inverter connected to the utility grid. •They do not have batteries.
uses fuel, such as natural gas, to produce heat and electricity simultaneously. Integration also occurs at this scale where
systems, such as solar hot water and geothermal pumps, are combined to achieve greater, more efficient power solutions for
▪ Off grid System:
Batteries and generator are expensive and require maintenance. 离网发电系统：电池和发 电机是昂贵的，并需要维 修
▪ Lifetime for the batteries and generator(10 – 15 years) is less than for the solar array (35+ years) and wind turbine (20-25 years).
▪ If your home is located far away from the nearest grid
▪ For remote camps, islands, or boats, off-grid may be the right choice.
如果你的家距离最近的电 网很远，对于处于偏远地 区的营地，岛屿，或船， 离网可能是正确的选择
Energy Systems Integration Residential & Commercial
能源系统集成 住宅及商业
national laboratory of the U.S. Department of Energy
在住宅和商业应用方面，能源系统集成的一个例子是使用燃料，如天然气，以同时产生热量和电的热电联产系统。系统集成也应用于将太
目前，很多人考虑用可 再生能源系统为自己的 家庭供电。可再生能源 系统可以用来提供你部 分或全部的电力需求
小型混合发电系统 （太阳能和风能）
小型太阳能发电系统
U.S.Department of Energy
Home energy systems
Grid-tied or Off Grid?
家庭式可再生能源发电系统 并网还是离网？
并网发电系统（无蓄电池）
Battery-based grid-tie systems
并网发电系统（有蓄电池）
Stand-alone off-grid systems
离网发电系统
Battery-based grid-tie systems
•Battery-based grid-tie systems use batteries, and they are connected to the utility grid, so they can send out to the grid any surplus electricity generated by the RE system, and use utility electricity when needed.
阳能热水和地热水泵等组合以实现更有效的家庭和商业供能方案。
At the residential and commercial level, an example of energy systems integration is a combined heat and power system that
homes, multifamily units, and commercial buildings.
Grid-tied PV System
并网光伏发电系统
太阳能电池组件
光伏逆变器
住宅
双向电表
多余的电力
When a home or business is using energy, but the solar panels aren‘t producing enough energy (at night, or on a stormy day), electricity from the grid supplements or replaces electricity from the panels. 当一个家庭或企业的用电量超过太阳能电池板的供电量时，电网供电可以作为补充
In case you have an excess Of Solar electricity from your house, It Will even turn the Electrlc Meter Backwards, to the utility Grid. CASE 3 ： SUN and EXCESS ENERGY
Residential Renewable Energy Systems
家庭式可再生能源发电系统
Small wind electric systems
Microhydropower systems
Residential
Renewable energy system
家庭式可再生能源发电系统
小型风力发电系统
电池和发电机寿命较短
▪ Batteryless grid-tie systems:
No backup capability When utility power goes out your system also goes down.
并网发电系统（有蓄电池）
它的缺点是没有电池备份 存储系统，当电网供电中 断时，你的系统也会停止 工作
并网发电系统（有蓄电池） 基于电池的并网系统，这种系统连接到公用电网，因此它们可再生能源发电系统产生的剩余电力 输送到电网，并在需要时使用的电网的电力
Home energy systems
Grid-tied or Off Grid? 家庭式可再生能源发电系统 并网还是离网？
Batteryless grid-tie systems
Grid-tied PV System
并网光伏发电系统
太阳能电池组件
光伏逆变器
住宅
双向电表
多余的电力
Grid-tied PV systems do not need to produce 100% of the electricty demand for a home or business.
When there is no demand for energy, the solar panels send excess electricity back out into the grid for use elsewhere.并网光伏发电系统不需要生产家庭或企业所需的100%的电量。当没有能源需 求时，太阳能电池板将多余的电量输入电网
Small hybrid electric systems (solar and wind)
小型水利发电系统 Small solar electric systems
Many people are considering purchasing a renewable energy system to generate electricity at their home. A renewable energy system can be used to supply some or all of your electricity needs, using technologies like:
The sun can provide enough energy to supply your Household Loads in this S Without need Of the Utility Gnd. CASE 1 ： ONLY SLIN ENERGY
In Some Situation, the Sun energy might not be enough ,for your house. Therefore, electricity comes from the Grid to compensate. CASE 2 ： SUN +GRID ENERG
并网发电系统（无蓄电池） 最简单的所有系统，仅具有能量产生技术（无论是光伏组件，风力发电机，或微型水力发电涡 轮机），以及一个连接到电网的逆变器 这种系统中没有电池
Home energy systems
Grid-tied or Off Grid?
家庭式可再生能源发电系统 并网还是离网？
Batteryless grid-tie systems
Home energy systems
Grid-tied or Off Grid?
家庭式可再生能源发电系统 并网还是离网？
Location
Cost
Power outages
Grid-tied PV System
并网光伏发电系统
太阳能电池组件
光伏逆变器
住宅
双向电表
多余的电力
Grid-tied PV systems are the most common type of solar PV system. They rely on moving energy to
and from the grid. Grid-tied systems are connected to the electrical grid, and allow residents of a building to use solar energy as well as electricity from the grid.并网光伏系统是太阳能光伏发电系 统中最常见的类型。它能向电网供电或者从电网由电网供电。并网光伏发电系统与电网连接， 并允许居民使用太阳能和电网的电能
In the last s we don't have any energy coming from the Sun at night. All provided by the Utility grid. CASE 4 ： GRID ENERGY AT NIGHT
The grid now also becomes, in a sense a battery bank. Future Energy
并网发电系统（无蓄电池）
Battery-based grid-tie systems
并网发电系统（有蓄电池）
Stand-alone off-grid systems
离网发电系统
Stand-alone off-grid systems
•Completely independent of the utility grid. •With the exception of direct-use systems like water pumping or PV-powered ventilation, stand-alone RE systems must have batteries to provide energy storage during times of low input or high usage.
Batteryless grid-tie systems
并网发电系统（无蓄电池）
Battery-based griΒιβλιοθήκη Baidu-tie systems
并网发电系统（有蓄电池）
Stand-alone off-grid systems
离网发电系统
Batteryless grid-tie systems
•Simplest of all systems, having only the energy generation technology (be it PV modules, or a wind or microhydro turbine) and an inverter connected to the utility grid. •They do not have batteries.
uses fuel, such as natural gas, to produce heat and electricity simultaneously. Integration also occurs at this scale where
systems, such as solar hot water and geothermal pumps, are combined to achieve greater, more efficient power solutions for
▪ Off grid System:
Batteries and generator are expensive and require maintenance. 离网发电系统：电池和发 电机是昂贵的，并需要维 修
▪ Lifetime for the batteries and generator(10 – 15 years) is less than for the solar array (35+ years) and wind turbine (20-25 years).
▪ If your home is located far away from the nearest grid
▪ For remote camps, islands, or boats, off-grid may be the right choice.
如果你的家距离最近的电 网很远，对于处于偏远地 区的营地，岛屿，或船， 离网可能是正确的选择
Energy Systems Integration Residential & Commercial
能源系统集成 住宅及商业
national laboratory of the U.S. Department of Energy
在住宅和商业应用方面，能源系统集成的一个例子是使用燃料，如天然气，以同时产生热量和电的热电联产系统。系统集成也应用于将太
目前，很多人考虑用可 再生能源系统为自己的 家庭供电。可再生能源 系统可以用来提供你部 分或全部的电力需求
小型混合发电系统 （太阳能和风能）
小型太阳能发电系统
U.S.Department of Energy
Home energy systems
Grid-tied or Off Grid?
家庭式可再生能源发电系统 并网还是离网？
并网发电系统（无蓄电池）
Battery-based grid-tie systems
并网发电系统（有蓄电池）
Stand-alone off-grid systems
离网发电系统
Battery-based grid-tie systems
•Battery-based grid-tie systems use batteries, and they are connected to the utility grid, so they can send out to the grid any surplus electricity generated by the RE system, and use utility electricity when needed.
阳能热水和地热水泵等组合以实现更有效的家庭和商业供能方案。
At the residential and commercial level, an example of energy systems integration is a combined heat and power system that
homes, multifamily units, and commercial buildings.
Grid-tied PV System
并网光伏发电系统
太阳能电池组件
光伏逆变器
住宅
双向电表
多余的电力
When a home or business is using energy, but the solar panels aren‘t producing enough energy (at night, or on a stormy day), electricity from the grid supplements or replaces electricity from the panels. 当一个家庭或企业的用电量超过太阳能电池板的供电量时，电网供电可以作为补充
In case you have an excess Of Solar electricity from your house, It Will even turn the Electrlc Meter Backwards, to the utility Grid. CASE 3 ： SUN and EXCESS ENERGY
Residential Renewable Energy Systems
家庭式可再生能源发电系统
Small wind electric systems
Microhydropower systems
Residential
Renewable energy system
家庭式可再生能源发电系统
小型风力发电系统
电池和发电机寿命较短
▪ Batteryless grid-tie systems:
No backup capability When utility power goes out your system also goes down.
并网发电系统（有蓄电池）
它的缺点是没有电池备份 存储系统，当电网供电中 断时，你的系统也会停止 工作
并网发电系统（有蓄电池） 基于电池的并网系统，这种系统连接到公用电网，因此它们可再生能源发电系统产生的剩余电力 输送到电网，并在需要时使用的电网的电力
Home energy systems
Grid-tied or Off Grid? 家庭式可再生能源发电系统 并网还是离网？
Batteryless grid-tie systems
Grid-tied PV System
并网光伏发电系统
太阳能电池组件
光伏逆变器
住宅
双向电表
多余的电力
Grid-tied PV systems do not need to produce 100% of the electricty demand for a home or business.
When there is no demand for energy, the solar panels send excess electricity back out into the grid for use elsewhere.并网光伏发电系统不需要生产家庭或企业所需的100%的电量。当没有能源需 求时，太阳能电池板将多余的电量输入电网
Small hybrid electric systems (solar and wind)
小型水利发电系统 Small solar electric systems
Many people are considering purchasing a renewable energy system to generate electricity at their home. A renewable energy system can be used to supply some or all of your electricity needs, using technologies like:
The sun can provide enough energy to supply your Household Loads in this S Without need Of the Utility Gnd. CASE 1 ： ONLY SLIN ENERGY
In Some Situation, the Sun energy might not be enough ,for your house. Therefore, electricity comes from the Grid to compensate. CASE 2 ： SUN +GRID ENERG
并网发电系统（无蓄电池） 最简单的所有系统，仅具有能量产生技术（无论是光伏组件，风力发电机，或微型水力发电涡 轮机），以及一个连接到电网的逆变器 这种系统中没有电池
Home energy systems
Grid-tied or Off Grid?
家庭式可再生能源发电系统 并网还是离网？
Batteryless grid-tie systems