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Battery Installation

EV Solar & Battery Storage Ltd

Choosing your Battery System

When deciding which battery system best suits your needs and budget there are two types of systems to choose from.

  1. AC coupled battery system
  2. Hybrid battery system


We offer bespoke battery systems from leading battery storage manufacturers for domestic and commercial properties to suit your individual requirements.

Below are the pros and cons of each to help you decide which would be best for you.

AC Coupled inverter and battery system

If you already have solar PV installed at your property and receive a feed-in-tariff then this is the best option to choose.

Hybrid Systems

If your thinking of installing solar PV and would like the option to add a battery now or in the future then this type of system is worth considering.

Choosing your PV System

AC COUPLED INVERTER AND BATTERY SYSTEM

If you already have solar PV installed at your property and receive a feed-in-tariff then this is the best option to choose.

An AC coupled battery system does not affect your feed-in-tariff payments by working independently from your existing solar PV.

Pros

Ability to output power along side your existing solar PV inverter.

In effect doubling the power available to meet the demand of your connected loads, this is also a good option for households who consume lots of energy.

Can be charged from the grid during cheaper night time tariffs for use during the day when electricity is more expensive.

Works with or without solar PV.

Cons

Not quite as efficient as a hybrid inverter.

Choosing your PV System

HYBRID INVERTER AND BATTERY SYSTEM

If your thinking of installing solar PV and would like the option to add a battery now or in the future then this type of system is worth considering. A hybrid inverter takes the place of a standard solar PV inverter and also has the ability to connect directly to a battery.

Pros

Charges the battery directly from DC power produced by the solar panels making it the most efficient.

Cheaper than installing a standard solar pv inverter and an additional AC coupled battery inverter.

Cons

Output power from both the solar production and the battery is limited by the size of the hybrid inverter.

If the inverter develops a fault you will loose both the solar production and the battery until the fault has been rectified.

How to choose a grid connected battery system

There are two options available when deciding which type of grid connected battery system best suits your requirements and budget

1. AC coupled battery

2. Hybrid inverter and battery combination

A hybrid inverter can output up to its rated power in kW day or night whether from solar, battery or both.

An AC coupled inverter can output up to its rated power in kW day or night from the battery but can also do this alongside a standard solar pv inverter which could also be outputting up to its rated power.

In regard to how much battery capacity you might need this can be calculated using the estimated annual consumption figure on your electricity bill. The ability to fully charge your batteries during the day from Solar depends on the size and orientation of your solar array, size of battery bank, power consumed during this time, weather and time of year. 

Choosing the right amount of battery capacity to best suit your needs is designed bespoke to each individual customer. One size doesn’t fit all.

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If you would like to discuss either your requirements in more detail or would like a quote, please contact us. 

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