The Inspirit Charger

As the Inspirit Charger generates power on-site there are no transmission losses…

The appliance has an ultra high level of energy efficiency (90%). The Inspirit Charger is a floor standing appliance suitable for installation in a plant room, garage or utility room. It can be installed as a stand-alone appliance or as the lead appliance in an existing plant room. Multiple Inspirit Charger units can be installed in sequence, or “cascade” arrangement, with a suitable sequence controller to provide fully load matched operation and optimal utilisation.

The Inspirit Charger 3.1 produces 6.4kW electrical and 15kW thermal output

Generate Heat & Electricity All Year

The Inspirit Charger 3.1 will provide a peak electrical power output of 6.4kW and heat output of 15kW.

Offset Your Electricity Bill

Produces electricity at a fraction of the cost the grid supply with the ability to export electricity back to the utility grid and reduce electricity costs year on year. A short payback period from a low carbon cost saver

Reduced Carbon Footprint

The Inspirit Charger reduces dependence on grid supply through on-site local generation. A single Inspirit Charger saves up to 4 tonnes of CO2 emissions per year. With the added potential in the UK to benefit from either Feed-in Tariffs or Renewable Obligation Certificates, the Inspirit Charger makes perfect economic and environmental sense.

Simple Installation & Maintenance

No structural or specific planning permission is required. With low maintenance and quiet operation, the Inspirit Charger is suitable for installation in a plant room, garage or utility room. Further, the “sealed for life” design of the Stirling Engine power module provides total peace of mind to the owner.

Inspirit Energy – Technology

The Inspirit Charger has been developed over a number of years and is based upon a patented kinematic Stirling engine generator module. The Stirling engine, a virtually frictionless system powered by gas burner heat, drives a generator to produce up to 6.4kW of mains voltage electricity and is capable of exporting this electricity back to the utility grid via the UK’s G83 connection protocol.

Unlike an internal combustion engine where combustion takes place inside the cylinder, Stirling engines are “external combustion engines” operating at high efficiencies. The cycle is sealed and contains a constant volume of the working gas, inert and safe helium. The cycle works by expanding and contracting the volume of gas caused by temperature differentials at either end of the engine and hence the engine has a hot end and a cold end. The heat source is provided by the gas fired burner, used for central heating and for transmitting heat through a heat exchanger to the volume of gas in the engine. Cooling is supplied by water cooled heat exchangers taking the original heat away for use in the central heating system.

Heat produced by the combustion process has a number of uses: preheating of the incoming air/fuel mix, generation of electricity and heating of the water circuit.

The water circuit extracts excess heat through the following processes:

  1. Heat transfer to the outer skin of the combustion chamber, through an enclosed water jacket.
  2. Through heat transferred to the Stirling engine, via a water jacket over the generator.
  3. From a heat exchanger built into the engine’s heater head.
  4. From the combustion products exiting the combustion chamber, via a two stage water/gas heat exchanger, after which the exhaust gases exit the appliance via a flue.

Using this advanced technology almost all heat from the gas burner is utilised for either electrical power generation or central heating and waste heat is minimal.

In the last stage of the process, the rotary motion of the Stirling engine drives a permanent magnet synchronous generator that produce up to 6.4kW of electrical output. This power output is managed by our own power electronics to provide clean electricity in whatever form, frequency and voltage the client may require. Unlike some other microCHP appliances, the Inspirit appliance offers an electrical output, suitable for connection to both single and 3 phase installations.

The appliance offers an overall efficiency of ~90%, divided between electrical efficiency (15%) and thermal efficiency (75%), and compares very favourably with conventional boilers, which typically run at lower efficiency in real world situations and deliver no electrical output at all.

Key Data:
Inspirit Charger 3.1
Weight (full)350kg
Max Gas Heat Input (GCV)20kW
Max Heat Output @ 80/6015kW
Min Heat Output @ 80/60 5kW
Max Electrical Output6.4kW
Min Electrical Output1kW
Electrical Output Format230V @50Hz
Flue System100/60mm
Flow Connection22mm
Gas Connection22mm

Register your interest

We are seeking field trial partners and taking expressions of interest for prospective customers interested in our pre-production field trials. Register your interest below.