Home Battery FAQ - Common Questions Answered

Payback Period

How quickly will you recoup your home battery investment?

The payback period depends on your energy consumption, the battery system and how you use the battery.

The average payback period for a home battery is 7 to 10 years. This depends heavily on your situation:

With net metering: 8-12 years (you sell excess power back)
Without net metering (from 2027): 5-8 years (you use all power yourself)
High electricity prices: The more expensive the power, the faster the payback

With current energy prices (€0.25-€0.40 per kWh), some households can achieve a payback period of just 5-6 years.

You can calculate your payback period using our free savings calculator. Here are the main factors:

Key Factors

• Daily electricity consumption (kWh)
• Solar panel capacity (Wp)
• Battery capacity (kWh)
• Current energy price

Example Calculation

• Consumption: 4,000 kWh/year
• Battery: 10 kWh
• Savings: €600-€1,000/year
• Payback: 6-8 years

Good news: The payback period becomes faster after the end of net metering! Net metering is being phased out from 2025 and will disappear completely in 2031.

Benefits after net metering ends:

✓ You receive more for your excess solar power (up to €0.15/kWh)
✓ Maximum value from your battery through smart charging/discharging
✓ Faster payback: 5-7 years instead of 8-12 years

Read more about the end of net metering and what this means for you.

Yes! In addition to saving, you can also actively earn money with your home battery:

Ancillary Services Market

Supply power back at times of high demand. Earn €50-€200/year with dynamic pricing.

Optimal Self-Consumption

Use 70-80% of your solar power yourself instead of feeding back at lower prices.

Emergency Power - Uninsurable Value

Protect yourself against power outages. Priceless during power outages!

Installation Costs

What does a home battery installation cost?

Transparent prices and clear explanations of all costs. No hidden fees.

Prices depend on capacity and brand. Here's an overview:

Battery System	Capacity	Price (incl. installation)
Marstek Venus 3.0	5 kWh	From €1,595
Marstek Venus 2.0	5 kWh	From €1,399
Felicity + Solis S5	12.5 kWh	From €4,450
Felicity 40kWh Tower	40 kWh	From €10,950

* All prices include 21% VAT, inverter, installation and connection. No hidden costs.

At Energieopslag040, all costs are included in the stated price:

Home battery + inverter

Professional installation

Connection and configuration

All required cables

Mounting and fixing

Commissioning

Possible extra costs:

• Electrical panel upgrade (if needed): €200-€500
• Moving fuse box: on request

Unfortunately there is currently no national subsidy for home batteries in the Netherlands. However:

Municipal schemes

Some municipalities offer local subsidies. Check your municipality's website for current schemes.

Good alternative: Claim back VAT

Entrepreneurs can claim back the 21% VAT through value-added tax. This saves significantly on costs!

Energy Loan

Through the Warmtefonds (National Heat Fund), you can take out an advantageous loan for energy-saving measures.

Installing a home battery is relatively quick and usually completed within one day:

Phase 1: Preparation (1-2 weeks in advance)

Free technical inspection and quote approved

Phase 2: Installation (2-4 hours)

Placement of battery, inverter and all cabling

Phase 3: Configuration & Test (1 hour)

System setup, app connection and testing

Done! 🚀

Your battery is immediately operational

In most cases: No. Home batteries up to a certain power output fall under the permit-exempt category:

Permit-exempt

Batteries up to 3 kW and within the meter box or immediate vicinity

May require notification

Larger systems or monumental buildings may require notification

We handle everything for you: Our installers check whether your situation is permit-exempt and handle any notifications.

Safety

Is a home battery safe?

Safety is our top priority. Here's everything you need to know about the safety of home batteries.

Modern home batteries are very safe and have multiple built-in safety systems:

Thermal Protection

BMS (Battery Management System) continuously monitors temperature and automatically shuts down in case of overheating.

Short Circuit Protection

Automatic shutdown in case of short circuits or power surges.

Cell Balancing

BMS ensures even charging/discharging of all cells for maximum lifespan.

Fire-Resistant Housing

Certified fire-resistant housing that contains any fire.

All our batteries are certified for the European market:

CE Marking

Complies with all European safety standards

UN38.3

Transport certification for lithium batteries

IP65 / IP20

Dust and water resistance (depending on model)

IEC 62619

International industry standard for industrial lithium batteries

Yes, home batteries are specially designed for residential use. Our certified installers advise on the best location:

Recommended: Garage

Ideal location: dry, ventilated and sheltered from temperature extremes

Recommended: Utility Room

Dry room near the fuse box, ideal for connection

Not Recommended

Bedrooms, bathrooms or damp rooms

Outdoor Spaces

Only IP65-certified models suitable (not all models)

That depends on the type of battery system:

Backup Emergency Power (Recommended)

Systems with backup function automatically switch over during power outage. You have immediate power without interruption!

System without backup

Safely shuts down during power outage (normal protection - prevents feeding back to the grid)

Tip: Choose a system with backup function if you want your battery to work during power outages as well.

Home batteries produce no harmful electromagnetic radiation. They comply with strict EU standards:

Low EMF

The electromagnetic field of a home battery is comparable to other household appliances.

Safe Distance

We install the battery at least 1 metre away from regularly occupied spaces.

In most cases: Yes. Home batteries are increasingly being accepted by insurers:

Home Insurance

Most insurers cover home batteries under home insurance if they are professionally installed.

Contents Insurance

Some insurers cover the battery under contents insurance.

Our Advice

Contact your insurer for exact coverage. We can provide an installation certificate if needed.

Frequently Asked Questions About Home Batteries

How quickly will you recoup your home battery investment?

What does a home battery installation cost?

Is a home battery safe?

Still have questions?