What energies? What contracts? What assist? Solutions to your questions on hovering vitality prices

What energies? What contracts? What assist? Solutions to your questions on hovering vitality prices

What sort of heating is healthier to put in when you’ve gotten photovoltaic panels: insert/wooden range, pellet or warmth pump?

The response from Stéphane Bocqué, from the FEBEG:

Absolutely the precedence, but in addition essentially the most worthwhile, is the insulation of the roof, the partitions, and the home windows. Whenever you attain a sufficiently low consumption (at most 10,000 kWh of gasoline, 1000 l of oil, or 1500 kg of pellets), you’ll be able to then take into account putting in a warmth pump.

Though the long run vitality system will want a most of renewable vitality (putting in photovoltaics) and the electrification of heating (set up of a warmth pump), they shouldn’t be seen as working collectively as a result of the bulk (85 %) of photovoltaic manufacturing takes place outdoors the heating interval.

If it’s a effectively insulated constructing, iIt’s crucial to make sure that the beginning temperature of the warmth pump, which is able to go into the radiators, is as little as potential, i.e. 45 levels or much less… as a result of its vitality efficiency will drop sharply if this temperature will increase. This typically implies that we are able to not use the radiators that existed earlier than as a result of they don’t enable the usage of such a low temperature.

Why does the federal government not encourage photovoltaic installations by means of assist for people and professionals?

The reply of Francesco Contino, professor at UCLouvain:

That is already the case with a discount in VAT for the set up of photovoltaics. Even with out this drop and with out different assist, investing in photovoltaics is extraordinarily worthwhile and might be achieved with the assistance of a mortgage that will be simply repaid with the financial savings made on consumption.

Is it price utilizing an electrical water heater as an alternative of gasoline when you’ve gotten photo voltaic panels?

The response from Philippe Mercier, vitality skilled at Take a look at Achats:

If you have already got a gasoline heater and you don’t intend to do any work, it’s higher to maintain your system.

Then again, on the event of labor, the set up of an electrical water heater and even primarily based on a warmth pump (additionally known as thermodynamic) makes it potential to extend its self-consumption.

It’s due to this fact an operation with a long-term scope when there might be a differentiated metering between consumption and reinjection.

Additionally, if you have already got a balloon, a reasonable however efficient operation is to put an extra layer of insulation round it.

Extra info might be discovered on the Take a look at Achats web site right here:

https://www.test-achats.be/maison-energie/energie-renouvelable/file/enhance-self-consumption-photovoltaic-production/electric-water-heater

Ought to we take away the night time meter and change to single-hour when we now have photovoltaic panels that don’t utterly cowl family consumption?

The reply of Francesco Contino, professor at UCLouvain:

What’s implied within the query is that we nonetheless have an old style counter, which runs backwards. A single-hour meter counts the consumed or reinjected kilowatt hours in the identical means, at any time of the day or week.

When we now have a dual-hour counter, the counter “night time“counts the kilowatt hours consumed at night time, but in addition on weekends. Whereas the meter “day“, he counts the kilowatt hours consumed in the course of the day in the course of the week. When you’ve gotten photovoltaic panels, it may possibly occur, in the course of the day, that you simply reinject greater than you eat. And on this case, the meter will run extra the wrong way up than it has turned proper facet up.

And so, if all year long, you reinject greater than you eat, you reinject into the community totally free.

There’s a nuance, nonetheless, as a result of by switching to mono-hourly, the price of kilowatt hours at night time will increase, so there’s a calculation to be made. Furthermore, this method is in transition and we’ll quickly transfer to metering what’s consumed and reinjected with completely different tariffs.

Why is there no premium for electrical energy storage batteries in Wallonia once they exist in Flanders?

That is the one weak spot of photo voltaic panels, that are already worthwhile: immediately, ideally, it’s important to spend all of the vitality produced in the course of the day.

Batteries are a means of the long run. Nevertheless, their worth stays very excessive, and the funding unprofitable with no premium. However consultants consider that as with different applied sciences, the efficiency will steadily go up and the worth will go down. The granting of the bonus stays a political selection.

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